Ovulation Calculator

All material contained on these pages are free of copyright restrictions and maybe copied, reproduced, or duplicated without permission of the Office on Women’s Health in the U.S. Department of Health and Human Services. Citation of the source is appreciated.

Page last updated:
February 15, 2021


When should I start ovulation testing after my period?

If your typical menstrual cycle is 28-days, you would perform an ovulation test 10 or 14 days after starting your period. If your cycle is a different length or irregular, talk to your doctor about when you should take a test. You can take an ovulation test at any time of day

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What time should I take ovulation test?

To get the most accurate reading, you’ll want to: Use an ovulation test strip between 12 p.m. and 8 p.m. Most women have a surge in LH in the morning, and those levels can be picked up in your urine about four hours later

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What is the most accurate ovulation calculator?

babyMed has the most accurate ovulation calculator to determine your fertile window

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Can I ovulate right after my period?

Many women typically ovulate around 12 to 14 days after the first day of their last period, but some have a naturally short cycle. They may ovulate as soon as six days or so after the first day of their last period. And then, of course, there’s sperm.

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Should I test for ovulation twice a day?

Based on our research, we recommend testing your LH in the afternoon (between 12pm-6pm) for the best chances of catching your LH surge. If you’re trying to conceive, we also recommend testing twice a day when you’re in your fertile window to maximize your chances of catching your surge.

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Do you ovulate in the morning or night?

However, because ovulation usually happens between 4 pm and 7 pm the evening before the next morning’s temperature rise, you will need to have sex that morning, (if you haven’t already the night before) but even then it may be too late.

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What are the signs of ovulation?

The bottom line

Some people experience signs and symptoms of ovulation. These can include abdominal pain or cramps, bloating, slightly elevated body temperature, changes in cervical mucus and saliva, and breast tenderness.

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How many days can ovulation last?

Ovulation occurs once a month and lasts for about 24 hours. The egg will die if it’s not fertilized within 12 to 24 hours. With this information, you can start tracking your fertile days and improve your chances of conceiving. Female reproductive system.

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How much sperm is enough for pregnancy?

Quantity. Fertility is most likely if the semen discharged in a single ejaculation (ejaculate) contains at least 15 million sperm per milliliter. Too little sperm in an ejaculation might make it more difficult to get pregnant because there are fewer candidates available to fertilize the egg.

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What makes a woman more fertile than other?

According to experts, women at the peak of their ovulation experience the highest sense of smell and are more sensitive to the pheromones, usually during the latter half of the menstrual cycle. A good ovulation cycle implies that women are more likely to get pregnant and be more fertile than others.

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How do you ensure sperm enters the cervix?

The sperm must be able to invade the cervix via the cervical mucus by virtue of their own swimming ability. Nothing about the sexual act will help those sperm get into the cervix. They simply have to swim into the mucus on their own, and this requires a great deal of coordinated, cooperative activity on their part.

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What stops sperm from reaching the egg?

Fallopian tube obstruction

Blocked or scarred fallopian tubes that prevent sperm from reaching the egg are a frequent cause of infertility, especially among African Americans. A history of pelvic infection, sexually transmitted disease or endometriosis increases your risk for fallopian tube obstruction.

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How do you push sperm in to get pregnant?

The most common way people get pregnant is from vaginal sex ? when a person who has a penis ejaculates inside the other person’s vagina. Sperm cells in semen (cum) swim up the vagina, through the cervix and uterus, and into the fallopian tubes.

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How does a man feel after releasing sperm?

Resolution and refraction After ejaculation, the penis begins to lose its erection. About half of the erection is lost immediately, and the rest fades soon after. Muscle tension fades, and the man may feel relaxed or drowsy, according to Ingber.

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What are the tricks to get pregnant?

The highest pregnancy rates occur in couples who have sex every day or every other day. Have sex near the time of ovulation. If having sex every day isn’t possible ? or enjoyable ? have sex every 2 to 3 days a week starting soon after the end of your period.

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Ovulation Calculator & Calendar – WebMD

Ovulation Calculator Pregnancy Baby Parenting Menu HEALTH & PREGNANCY Menstrual periods are different from woman to woman and month to month. Use this calculator to see when you may be ovulating to help find your most fertile days. step 1 Select the first day of your last period NOTE: This tool cannot and should not be used to prevent pregnancy. Results are estimates and actual ovulation will vary for each woman. Get Pregnancy & Parenting Tips In Your InboxDoctor-approved information to keep you and your family healthy and happy.By clicking Subscribe, I agree to the WebMD Terms & Conditions & Privacy Policy and understand that I may opt out of WebMD subscriptions at any time.

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Ovulation calculator | Tommy's

Ovulation calculatorHow do I use the ovulation calculator? To find out your next fertile dates, you just need to select the date of the first day of your last period, adjust your average cycle length and click ‘submit’. Your cycle length is the number of days between your periods, counting the first day of your period until the day before your next period starts.  You will then receive your upcoming fertile dates over the next 4 months. This is just a guide to help you understand when you may be most fertile. What if my periods are irregular? You may have irregular periods if you can’t count your cycle and work out within a day or 2 when your period is due. This can make it harder to identify your ovulation date. But there are other ways of working out when you may be ovulating, such as changes in vaginal mucus, ovulation testing kits or measuring your temperature. There is more information about this below. We have more information about understanding your menstrual cycle. When is the best time to conceive? To increase your chances of getting pregnant, you need to get your fertile eggs and sperm together as often as possible. You’re the most fertile on the few days each cycle around ovulation, which is when an egg is released.  During an average menstrual cycle, there are 6 days when sex can result in pregnancy.  This is often called the ‘fertile window’ and includes the 5 days before ovulation and the day of ovulation itself.  Some people get pregnant very quickly but for some people it can take a little longer. We have more information about how long it takes to get pregnant.  How does the menstrual cycle work? Your cycle starts on the first day of your period and continues up to the first day of your next period. This is 28 days on average, but it’s normal to have a cycle that lasts between 21 and 40 days. At the same time, eggs begin to mature in the ovary. The lining of the womb thickens ready for fertilisation. During ovulation, your cervical mucus becomes thinner and clearer to help the sperm reach the released egg. About 12 to 16 days before the start of your next period, an egg is released from your ovaries (ovulation). If sperm is present during ovulation, or some time during the next 24 hours, the egg may be fertilised. If the egg has not been fertilised, the egg is re-absorbed by the body, the hormone levels drop, and the womb lining is shed. This is the beginning of your next period. Read more about how pregnancy works. Conception and sex Regular sex (every 2 to 3 days) is all most people need to conceive. If you’re under 40 and have regular sex without using contraception, you have an 80% chance of getting pregnant within a year.   To boost your chances of conceiving, aim to have regular sex throughout your cycle so you know that there should hopefully be good-quality sperm waiting for the time that the egg is released. Remember that if you’ve had sex in the 7 days before ovulation, it’s possible to get pregnant because sperm can live inside a woman’s body for up to 7 days and fertilise the egg when it’s released.   If you know when you ovulate each month, you can give yourself the best chance of getting pregnant by having sex in the days leading up to ovulation. Continue having sex during ovulation as you can still get pregnant. After this time, your fertile time…

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Ovulation calculator | Office on Women's Health

Ovulation calculator | Office on Women’s Health Ovulation calculator Knowing the days you are most likely to be fertile can increase your chance of getting pregnant. The typical menstrual cycle is 28 days long, but each woman is different. There are about 6 days during each menstrual cycle when you can get pregnant. This is called your fertile window. Use the calculator to see which days you are most likely to be fertile. All material contained on these pages are free of copyright restrictions and maybe copied, reproduced, or duplicated without permission of the Office on Women’s Health in the U.S. Department of Health and Human Services. Citation of the source is appreciated. Page last updated: February 15, 2021

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Ovulation calculator – Flo Health

Ovulation calculator – Flo Health The first day of your last period Average cycle length (days) According to the American College of Obstetricians and Gynecologists, a cycle length of 21-35 days is within the normal range. If your average cycle is below 21 days or above 35 days, we can’t calculate your estimated ovulation date because you may not be ovulating regularly. Speak to your health care provider for more information. We don’t collect, process, or store any of the data that you enter while using this tool. All calculations are done exclusively in your browser, and we don’t have access to the results. All data will be permanently erased after leaving or closing the page. Your estimated ovulation date Your estimated fertile window Start over If you’re trying to get pregnant, it pays to know when you’re ovulating.  We only have a small fertile window each month during which we can conceive. But, by using some basic information about your cycle, Flo’s ovulation calculator can predict when your ovulation day is, so you know your most fertile days. Try using our ovulation tracker now (above) and then scroll down for everything you need to know about ovulation, your fertile window, and how you can increase your chances of getting pregnant. Remember that ovulation predictors, ovulation calendars, and fertility calculators can help you learn more about your most fertile days. But they are for informational purposes only and cannot and should not be used to prevent pregnancy. Menstrual periods are different from person to person and month to month. Results are estimates, and actual ovulation will vary for each woman. Fertility cycle: What is ovulation? If you’ve landed on this ovulation calculator, you might already be familiar with what ovulation is. But if you’re still a bit confused, let’s break it down with the help of Dr. Jennifer Boyle, obstetrician and gynecologist (OB-GYN) at Massachusetts General Hospital.“Ovulation is when an oocyte, commonly called an egg, is released from the ovary,” Dr. Boyle says, adding that ovulation is necessary for a woman to become pregnant — and there’s usually a 24-hour window when the egg can be fertilized by the sperm. But here’s another fun fact: “It’s also ovulation that causes a woman to have a period two weeks later if she doesn’t become pregnant.” This is because the ovaries signal a spike in progesterone right after ovulation, but if there’s no fertilized egg, those hormone levels start to decrease, and the body sheds the egg along with the lining of the uterus via a period. Ovulation date: How is ovulation calculated? How many days after my period do I ovulate? So now that we know what it is, how many days after your period can you expect to ovulate? Well, the complicated thing is that everyone is different — but usually, you can tell when you will ovulate by the length of your cycle. The first day of your cycle is the first day of your period, and typically, most people will ovulate anywhere from 7 to 21 days into their cycle. Where exactly ovulation falls within that bracket depends on how long your cycle is. “Normal menstrual cycles can range from every 21 days to every 35 days,” says Dr. Boyle. “The time from ovulation to the next menstrual bleed will always be about 14 days — that’s generally the same for all women. But the time from the beginning of a period until ovulation is what can vary.” How many days after your period can you get pregnant? Here’s what that means in practice: “For women with cycles of 21 days, this means they…

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When and How to Use an Ovulation Calculator or Calendar

How to Use an Ovulation Calculator to Get Pregnant Ovulation calculators, charts, and calendars are tools that attempt to predict when you might ovulate. These tools are based on the typical length of your menstrual cycle and the expected window for ovulation to help time sex for pregnancy. Likewise, if you’re taking Clomid (clomiphene) or other fertility medications, these tools can be used to suggest when you’ll be most fertile. While helpful tools, ovulation calculators are not 100% accurate; other methods of ovulation detection, such as ovulation test kits, are more precise. But an ovulation calculator like the one below can help put you in the fertility ballpark. Overview The terms ovulation calculator, chart, and calendar are pretty much interchangeable. They all use the same basic information to predict when you are most likely to ovulate based on past cycles, giving you a projected fertile window to increase your chances of conceiving. The difference between these tools—calculators, charts, and calendars—is simply the name used and how the information is presented. Various online resources, books, and medical practitioners talk about and offer these tools (and how to do your own calculations) using different terminology but they are all essentially the same. A calendar tool will most often look like a typical calendar with the estimated fertility windows highlighted in each month. A chart may display the same information in a chart form rather than as a calendar. Additionally, it may be called an ovulation chart simply because you are charting the information. With a calculator, you likely plug your data into a calculator-type field that then provides the expected fertility period. A Reliable Ovulation Calculator to Try The U.S. Department of Health and Human Services Office on Women’s Health offers a basic ovulation calendar that is easy to use and gives you a fertility window of six days. It also estimates your likely ovulation date. How It Works Most simple ovulation predictor tools just ask for the date of the first day of your last period and the average length of your menstrual cycles. If you don’t know your regular cycle length, most calendars will suggest that you use 28 days. This is considered the average but research shows there is actually significant variation from woman to woman (and even cycle to cycle for some women). A “normal” cycle can range from 21 to 35 days. Then, the calculator (or calendar or chart) will usually assume a luteal phase of 14 days. The luteal phase is the time between ovulation and the first day of your next period. Like cycle length, the length of a “normal” luteal phase can also vary quite a bit and be as short as 10 days or as long as 15. So, if your luteal phase tends toward the lower end of the spectrum, the fertility window provided by a basic ovulation calculator tool might be off by several days. More precise ovulation calendars will factor in how long your personal luteal phase is in addition to your average cycle length. To correct for any possible miscalculation, add a few days on at the end of your projected fertility window. If you know from prior testing or fertility awareness charting how long your luteal phase averages, be sure to include that information to get a more accurate fertility window from ovulation charting. If not, consider using basal body…

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Calculate the dates you're most likely to ovulate.

Calculate the dates you’re most likely to ovulate. Ovulation Calculator Trying to get pregnant? Our Ovulation Calculator helps you determine the days you’re most likely to conceive. If you’re actively trying to get pregnant, knowing when you will ovulate will greatly enhance your chance of success! Our Ovulation Calculator will help you predict the dates you’re most likely to ovulate based on your cycle length. Enter the day of your last period and the number of days in your cycle (anywhere from 20 to 45 days). Our Ovulation Calculator will tell you the 2 days you’re most likely to conceive. CALCULATE MY BEST DAYS TO CONCEIVE When did your last period begin? Your best days to conceive are Your likely due date would be S M T W T F S Other future fertile days:

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Ovulation Calculator

Ovulation Calculator The Ovulation Calculator estimates the most probable ovulation/fertile window as well as other related dates. The estimations are based on a woman’s last period date. This calculator should not be used as a form of birth control. Ovulation and Conception Ovulation in humans is the process by which ovarian follicles rupture and release one or more mature eggs from the ovaries. On average, ovulation occurs within the 4 days before or after the midpoint of a woman’s menstrual cycle (14 days before the start of a woman’s next menstrual period). Day 10-18 of the menstrual cycle (on average) is the most fertile phase of the menstrual cycle. This is important when trying to conceive because fertilization of the egg can only occur for 12-24 hours after release during part of the luteal phase, when a mature egg travels through the fallopian tubes towards the uterus. Since sperm can survive inside a woman’s body for up to five days, regular sex five days before and on the day of ovulation can improve the likelihood of conception. If fertilized, the egg will implant in the uterus 6-12 days later. Otherwise, menstruation occurs, and blood and mucosal tissue from the inner lining of the uterus is expelled. Ovulation Prediction Many people would like to predict their ovulation date, mostly to increase their chances of getting pregnant. The following are a few common methods for doing so. Tracking Menstrual Cycles This ovulation calculator uses the method of tracking menstrual cycles in order to predict when ovulation occurs. Since day 10-18 of the menstrual cycle is typically the most fertile phase of the menstrual cycle, women with regular cycles can fairly easily determine when they are ovulating and most likely to conceive. Menstrual cycles vary between women however, and a person without a 28-day menstrual cycle may need to track their menstrual cycle to more accurately determine when ovulation might occur. The first day of the menstrual cycle is the day that bleeding starts, and it ends the day that bleeding starts again. It can be helpful to maintain a menstrual calendar to determine how regular your periods are. If they are irregular, other methods may be more accurate for estimating when ovulation will occur. Tracking Basal Body Temperatures Basal body temperature (BBT) is measured using a special thermometer. This is your temperature when you first wake up in the morning. BBT is generally at the lowest level right before ovulation occurs. It starts rising by about ½ a degree a day during ovulation. Tracking BBT over a few months can help you determine when you are ovulating and most likely to be able to conceive. However, there are other factors involved that can affect your BBT, such as having a cold or infection. In these cases, measuring BBT would likely not be a good indicator of ovulation. Ovulation Kits It is also possible to use an over-the-counter ovulation test that tests for a surge in some specific hormones that precede ovulation by 24-48 hours. While these tests are 99% accurate in detecting the specific hormones, they cannot guarantee when exactly ovulation will occur within the two-day period. These tests typically measure the level of luteinizing hormone…

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