When Can I Get Pregnant Calculator

Track Your Basal Body Temperature

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Your basal body temperature, or BBT, that is. Taken with a special, basal body thermometer, basal body temperature is the baseline reading you get first thing in the morning, after at least three to five hours of sleep and before you get out of bed, talk or even sit up. Your BBT changes throughout your cycle as fluctuations in hormone levels occur. During the first half of your cycle before ovulation, estrogen dominates.

During the second half after ovulation, there’s a surge in progesterone, which increases your body temperature as it gets your uterus ready for a fertilized, implantable egg. That means your temperature will be lower in the first half of the month than it is in the second half.

Confused? Here’s the bottom line: Your basal body temperature will reach its lowest point at ovulation and then rise immediately about a half a degree as soon as ovulation occurs. Keep in mind that charting your BBT for just one month will not enable you to predict the day you ovulate but rather give you evidence of ovulation after it’s happened. Tracking it over a few months, however, will help you see a pattern in your cycles, enabling you to predict when your fertile days are and when to hop into bed accordingly.

Many women do find this approach a bit frustrating and it is important to know that studies have shown that the timing of ovulation does vary among women after the dip in temperature. Ovulation predictor kits are more precise.

How We Calculate Your Fertile Window

This ovulation calendar estimates when you will ovulate based on the date of your last menstrual cycle and the average number of days between your periods. First, we count back 14 days from the start date of your next expected period to calculate the date you’re most likely to ovulate. Then, we calculate your fertile window, which can extend a few days before ovulation and possibly up to one day after. Just note that this is not an exact science menstrual cycles can vary from woman to woman and month to month . And, if you have irregular periods, that might make it tougher to pinpoint your fertile window.

Predict Ovulation By Hormone

A surge in LH triggers your ovaries to release an egg. The surge usually happens 36 hours before the egg is released. Ovulation kits check LH levels in your urine to help you pinpoint the day of ovulation. These kits, which you can buy at the drugstore, are convenient and highly accurate. You may want to test 1-2 days before you expect the surge so you can note the rise in LH.

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First Trimester Of Pregnancy:

In the first trimester, your body undergoes several changes. Optimistic studies reveal that hormonal changes will affect the entire organ system in your body. You can accurate pregnancy month calculator to track your 1st trimester of pregnancy. The first trimester includes:

1 week pregnant

27 weeks pregnant 28 weeks pregnant

In the 2nd trimester, the abdomen of women will expand as the baby continues to grow. Before the 2nd trimester is over, the woman will feel that her baby is beginning to move. As women body several.

Women may have aches on the abdomen, back, groin, or thigh pain Women may have stretch marks on your breasts, abdomen, thighs, or buttocks Women may notice the darkening of the skin around your breast nipples Women often have patches of darker skin it often occurs over the cheeks, forehead, nose, or upper lip. These patches sometimes referring as the mask of pregnancy Women may have numb or tingling hands which are known as the carpal tunnel syndrome Women may have itching on the palms, soles of the feet, and abdomen Women often have to swell on the ankles, fingers, and face

To get further detail, you can try an online second trimester calculator that determines the exact month of your trimester, also shows symptoms, milestones for your pregnancy.

Why Is An Ovulation Calculator Different To A Fertility Calendar

Ovulation Calculator &  Fertility Tracker

An ovulation calculator estimates how likely you are to release an egg on a particular day in your . A fertility calendar tells you the days on which youre more likely to conceive if you have sex.

When an ovary releases an egg this is known as and this happens once during your menstrual cycle. An ovulation calculator provides an estimate of how likely you are to ovulate on certain days in your cycle and can help you identify your most fertile days. These calculators work by taking the first day of your last period and the length of your menstrual cycle to give a range of days when you may release an egg.

After an egg is released, it only survives for up to 24 hours, so knowing when you ovulate gives you a very narrow fertility time window for intercourse. The good news is you have more fertile days when you can get pregnant since the chance of conception doesnt just depend on the lifetime of the egg, but also on the lifetime of the sperm. Sperm can survive in your body for up to 5 days after intercourse, so you can conceive even if you have sex 4 or 5 days before ovulation. Your f is the number of days that the egg and sperm can survive and this is usually around 6 days.

Use our ovulation calculator to get an approximation for when you ovulate. The more you know about your cycle, the easier it will be to know your fertile window.

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How Soon Will A Pregnancy Test Read Positive

The pregnancy test should read positive a few days after implantation, usually around 14 days after ovulation in naturally conceived pregnancies.

Keep in mind that if your periods are irregular, it might be quite challenging to predict your ovulation date and moment when you’ll receive a positive pregnancy test result!

As for IVF treatment, even though you may expect your results to be positive a little bit earlier on, keep in mind that hCG used in the procedure may influence some of the results, creating a false-positive.

First Day Of Last Period:

Most pregnancies last around 40 weeks . So, the best way to estimate your due date is to count 40 weeks, or 280 days, from the first day of your LMP or last menstrual period. Additionally, there is another way to do it simply subtract three months from the first day of your last menstrual period and add seven days. And, pregnancy due calculator also helps you to perform pregnancy due date calculation instantly without doing any maths.

This is the way that how your Gynecologist will estimate your due date, and no doubt, its a pretty solid target. But, you have to remember that its just as normal to deliver a week or even two week before or after. .

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Things To Know About Ovulation

As we mentioned in the paragraph above, theres actually only a small window of opportunity each cycle for making a baby just a few days in fact. The day of ovulation is usually the most likely date for conception but it is possible if you try a few days before ovulation too. Thats because the sperm can live for a few days and wait for the egg to get to the fallopian tubes.

Trying for a baby is a great excuse to have frequent sex. Youre most likely to conceive if you have sex in the days around when the egg is released, but trying every two or three days throughout the month is worth a go. Even if it just takes the pressure off and makes things feel less regimented.

What About An At

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The best time to take an at-home pregnancy test is first thing in the morning and with your first morning urine. This is when the urine is most concentrated and has the highest level of the pregnancy hormone hCG. Try not to get up and go to the bathroom during the night and then do the test as soon as you get up.

Despite what many manufacturers of urine pregnancy tests want you to believe, the urine pregnancy test will usually not become positive in most women until about a week after implantation, around the time of a missed period.

Had a negative pregnancy test? Find out what the chances are that you could still be pregnant even though you had a negative pregnancy test.

When the pregnancy test first becomes positive has a wide variation and depends on several variables. The following variables determine when the home urine pregnancy test becomes positive:

Exact day of ovulation: A urine pregnancy test is usually positive 4-5 days after implantation. However, it’s the day of ovulation that’s important too, as implantation can only happen if ovulation took place and the egg was fertilized. So if your day of ovulation was later than you thought, then implantation and subsequently the pregnancy test are further delayed, too. That is why it’s really important to keep track of your ovulation day so you can start counting the days to implantation, and eventually the positive pregnancy test.

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How Do I Calculate My Due Date

You can calculate your due date by using:

The date of your last period

You can calculate your due date if you know the first day of your last menstrual period before you got pregnant. Your due date is 40 weeks after the day you started your last period.

This method is a good way to estimate when your baby is due because many women remember the day they started their period. But it might not always be accurate, especially if you have an irregular menstrual cycle or are on birth control.

The date you conceived

If you know the exact day you conceived, you can use that information to figure out when your baby is due. Count ahead 38 weeks from the day you got pregnant. That day is your due date.

This method is only accurate if youre sure about the day you got pregnant. You may only know the specific day you got pregnant if you know when you ovulated. Ovulation happens when your ovaries release an egg. Usually, women ovulate about 14 days after the first day of their period. You can track your ovulation by:

  • Taking your basal body temperature around the time when you think you might be ovulating.
  • Tracking your ovulation symptoms, such as ovulation pain and cervical mucus.
  • Using an ovulation predictor kit. These kits use your urine to detect when youre ovulating.

What Causes Ovulation To Occur

When your body is close to ovulation, LH levels start to rise. FSH, or follicle-stimulating hormone, causes the egg to quickly mature in preparation for the ovulatory phase when the egg is released from the ovary. The luteinizing hormone causes a gradual increase in estrogen. As you move from the follicular phase to the ovulatory phase, LH rebuilds the lining of the uterus. The uterine lining thickens and fills with blood and nutrients in preparation for egg implantation. This process occurs every month until an egg is implanted in the uterine lining or your period begins. Increased estrogen thins cervical mucus to help sperm travel toward the egg. Estrogen levels continue to gradually rise until they hit the tipping point that triggers an LH surge. LH surge is a drastic increase in estrogen that forces the follicle to release the mature egg. When the egg releases into the fallopian tube it is known as ovulation.

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How To Know When Youre Ovulating

Knowing when you ovulate can help you plan for sex at the right time and improve your chance of getting pregnant. You can keep track of your menstrual cycles on a chart, in a diary, or on a free period-tracker app on your smartphone.

To work out the length of your menstrual cycle, record the first day you start bleeding . This is day 1. The last day of your cycle is the day before your next period begins.

  • Some people think the menstrual cycle and a period are the same thing.

    A period is when you bleed .

    A menstrual cycle starts on the day when a period starts and ends the day before the next period. A cycles length is considered normal if its between 21 and 35 days. They can vary between women and from one cycle to the next.

  • Working out your average menstrual cycle length

    If your menstrual cycles are different lengths you can work out your average cycle length.

    The number of days in a womans menstrual cycle can vary month to month. Periods are not always regular. It can be useful to work out an average cycle length, based on the length of three menstrual cycles, to estimate when youre most likely to be ovulating.

    If you add the number of days in three cycles and divide the total number by three, it gives you your average cycle length.


    Sarah tracked her last three menstrual cycles by counting the time from the first day of one period, to the day before the next period.

    Cycle 1 was 28 days Cycle 2 was 32 days Cycle 3 was 27 days

    28 + 32 + 27 = 87

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A pregnancy test, no matter if it’s blood or urine, only becomes positive after implantation, when the fetus has attached to the uterine wall and connects with the mother’s blood system. Implantation, when the fertilized egg implants into the endometrium, happens about 9 days after ovulation and fertilization . The blood pregnancy test will be positive 2-3 days after implantation and the urine test will be positive several days after the blood test has become positive.

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Fertility Facts & Figures

1 in 2 couples try to conceive on the wrong days.

This ovulation calculator is by no means a substitute for knowing what is going on in your body, but rather it should be used for informational purposes only. An ovulation calculator estimates your potential ovulation days by taking your average cycle length and the date of your last period – so its basically using the calendar method. An ovulation test measures your personal hormone levels to give you an accurate prediction for the day you ovulate and the days leading up to ovulation.

MYTH: Menstrual cycles are always 28 days long and every woman ovulates on day 14.

FACT: The average menstrual cycle is 28 days long, but every woman is unique and nearly 50% of womens cycles vary by 7 days or more. As menstrual cycles vary in length, so does the timing of ovulation, so it can be difficult to know when YOUR fertile days are.

Track Your Most Fertile Days

Generally, the best chance of pregnancy is when sex happens 1-2 days before ovulation. If you have a regular 28-day cycle, count back 14 days from when you expect your next period to start. Plan on having sex every other day around that time — say, days 12 and 14. Keep in mind that having sex every day may lower a man’s sperm count. Your cycle may be longer or shorter, so an online ovulation calculator may help you figure out the likely day.

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How Long Does It Take After Conception To Become Pregnant

Remember that pregnancy doesnt something that start the day you have sexual intercourse, normally, it can take up to 6 days after sexual intercourse for the sperm and egg to join & form a fertilized egg. Experts reveal that then it can take 3 to 4 days for the fertilized egg to completely implant itself in the lining of the uterus.

Are There Variations In Hcg Levels

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There is a wide normal variation of hCG levels, both in the blood and the urine. If a woman has low blood hCG levels, for example, then it can take several more days for it to show up on a pregnancy test.

Urine hCG levels change over the course of the day depending on how much you drink and how diluted or concentrated the urine is. Urine pregnancy testing is best done with more concentrated urine. If you drink a lot of fluid, the urine may be too diluted early on in the pregnancy to achieve an hCG concentration adequate for a positive test.

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Chances Of Getting Pregnant By Age Chart

Women in their 20s have around 80-90% chance of getting pregnant. In the 30s the chance is between 50 and 75%. Almost 50% of women over 40 have fertility issues and less than 40% have a chance of conceiving if theyre in the early 40s. Know your probability of getting pregnant and being infertile according to your age by referring to the Chances of Getting Pregnant by Age Chart below.


Your Fertile Window Is Shorter Than You Think

Did you know that only 13% of women are able to predict the date of ovulation? Even worse, close to half of all women have trouble identifying their fertile window!3

Fun fact:Do you think you ovulate on the 14th day of your cycle? Chances are, youre not! Less than 10% of women ovulate on day 14!4

You can only get pregnant 5 to 6 days of your cycle, thats it! So knowing exactly when youre in your fertile window is crucial!

And if you dont have sex when youre in your fertile window? Well, its just not going to happen, you wont get pregnant.

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