So you’re trying to get pregnant, or at the very least, interested in knowing when your window of fertility begins and ends.
Determining your fertility window is the best way to increase your chance of conceiving.
Timing is everything if you’re trying to conceive, which is why the fertility calendar and calculator tool helps women get the best estimate of when their best chances of conceiving are.
Navigation
- Fertility Calculator & Calendar
- Overview
- How To Use The Calculator
- Using The Calendar
- Why Should You Use It
- Understanding ovulation
- How Does It Work
- Likelihood of Conception
- Other Ways To Determine Your Fertility
- Getting pregnant is not Impossible
Fertility Calculator & Calendar
Please provide the following details of your menstrual cycle and press the Calculate button to get your results below.
When did your last period start?
How many days did it last?
How long is your cycle?
Below are the results based on the information you provided:
Your next menstrual period is expected to start on
Your next most fertile period is from to
If you conceive within this timeframe, your estimated due date will be
- Pre-Period
- Period Days
- Post-Period
- Peak Ovulation
Please note that this is only an estimation of your menstrual cycle
Overview
Lots of couples are entirely in the dark regarding the length of time it generally takes to become pregnant. When you have focused your whole life preventing pregnancy, it is understandable to expect that pregnancy will occur soon after you have your last birth control pill.
However, a woman is only fertile for an average of six days during each monthly cycle and even if you correctly identify the fertile window, you will still find many barriers before sperm meets egg. There’s merely a 25 percent probability of conceiving each month at the ideal case situation.
If your age is 25, and you do not have a regular menstrual cycle, or do not have time to get regular sexual intercourse, your probability of conceiving each month will substantially be lower.
How To Use The Calculator
The fertility calculator will give you the drop-down options to select: When did your period last start? How many days did it last? And how long is your cycle? Once you select the correct data for these three options, click Calculate and the calculator will provide you with the results.
These results will give you the expected start date of your next menstrual period, the dates of your next more fertile period, and even your estimated due date if you manage to conceive within this time period.
Fertility Calendar
The fertility calendar will show your fertile period as well as an estimation of your menstrual cycle’s pattern. It is color-coded and broken up into pre-period, period, post-period, and peak ovulation days, which are highlighted on the calendar according to their designated colors.
You can even navigate between different months by clicking the arrows in the corners above the calendars to have a more extensive estimation of your fertility days and menstrual pattern.
The calendar will automatically show you the calendar for that month and the next. This feature is great for planning ahead, and gives users the chance to plan the times they have intercourse around their ovulation dates.
Why should you use it
The fertility calendar and calculator is a useful tool for women to time their ovulation periods. It helps women determine their fertile window, the days during a woman’s menstrual cycle where pregnancy is most likely to occur.
A woman can only get pregnant five days before ovulation through the day of ovulation. This is because male sperm have a lifespan of five days, and the lifespan of the ovum is only 24 hours. Having sex during this time period gives you the best chance of conceiving.
The fertility window calculator allows you to determine your fertility window by inputting the start of your last menstrual cycle, the duration of the period, and how long your cycle is on average. These allow women of all different cycle lengths and menstrual patterns to determine their window.
Fertility calculator can also work if you’re trying to avoid pregnancy. Estimating when your most fertile dates are is a good way of having an idea of where your body is.
Knowing your menstruation and ovulation patterns can help give you more control over what happens with your body, and let you plan accordingly.
Understanding ovulation
Ovulation is a process of an egg being released from the ovary and this occurs 12-16 days before the next period begins.
‘Fertile days’ will be the times during a woman’s menstrual cycle, few days before and a day after ovulation, when a woman has the highest capability to become pregnant.
There are lots of ovulation calculators available now that quote when your fertile period will happen. These calculators are a type of a calendar and operate on user data without studying anything regarding your hormone levels.
- Cycle lengths differ from woman to woman and cycle to cycle – almost 50 percent of menstrual cycles differ from 7 or more times.
- The time of ovulation may vary by a couple of days, even at regular cycles.
How does the calculator work?
The fertility calculator estimates your fertility window by tracking your ovulation periods. Ovulation is the time during your cycle when a mature egg is released from the ovaries and becomes available for fertilization.
By taking the length of your average menstrual cycle and the date of your menstruation, the calculator works out the time that ovulation is estimated to occur.
Ovulation typically happens about two weeks before the next menstrual period begins, so your ovulation will depend on the length of your average menstrual cycle.
The fertility calculator and calendar is the perfect tool for users to easily and quickly figure out their ovulation cycles. All you need to know is the simple facts about your menstrual cycle, and the calculator will give you an accurate estimate of your window of fertility while the calendar will help lay it all out there for you to see, month by month.
Likelihood of Conception
After the fertility window closes, the likelihood of conceiving will decrease significantly. By anytime between 12-24 hours after ovulation occurs, you will no longer be able to get pregnant during that cycle for the month. Using the fertility calendar and calculator will optimize your chances of getting pregnant.
Are there others way to determine your fertility?
The fertility calculator and calendar is not the only way to determine your ovulation period. There are other ways of knowing what day of your cycle that ovulation occurs by observing your fertility signs and recording them.
Women’s cycles vary and are not always regular. Keeping a look out for fertility signs is a good way of determining your ovulation. Signs include changes in your vagina’s mucus, which can become clear, slick and slippery during ovulation.
Ovulation predictor kits also work accurately, as well as recording your basal body temperature to pinpoint at which point your ovulation has passed, paving the way for future records of ovulation.
Using the fertility calculator and calendar on this side is definitely a quick and simple way to gauge your fertility window accurately. As long as you know the date of your last period and the duration of your menstrual cycle regularly, then the site’s tool will give you an estimated fertility window and predicted date when your ovulation will occur.
If you’re looking to get pregnant, the best possible way to determine the timing is to calculate your fertility window and have intercourse within the 6 days leading up to ovulation and on the day that ovulation occurs.
Getting pregnant is not Impossible
Do not worry if you didn’t become pregnant even after a few months of trying. In spite of a suitable plan, the probability of becoming pregnant in a cycle is just about 20 percent.
Stressing out about this makes pregnancy much less probable. Keep away from stress. Try to appreciate your own life. Exercise. Unwind.
Physicians use the expression “inability to conceive” or “Subfertility” after two years of unprotected sexual activity. Keep trying and ask your gynecologist about taking additional steps.
References
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1. Clarke, J. F., van Rumste, M. M., Farquhar, C. M., Johnson, N. P., Mol, B. W., & Herbison, P. (2010). Measuring outcomes in fertility trials: can we rely on clinical pregnancy rates?. Fertility and sterility, 94(5), 1647-1651.
2. Donnez, J., Dolmans, M. M., Pellicer, A., Diaz-Garcia, C., Ernst, E., Macklon, K. T., & Andersen, C. Y. (2015). Fertility preservation for age-related fertility decline. The Lancet, 385(9967), 506-507.
3. Urrutia, R. P., Polis, C. B., Jensen, E. T., Greene, M. E., Kennedy, E., & Stanford, J. B. (2018). Effectiveness of Fertility Awareness–Based Methods for Pregnancy Prevention: A Systematic Review. Obstetrics & Gynecology, 132(3), 591-604.
4. Smits, K., Nelis, H., Van Steendam, K., Govaere, J., Roels, K., Ververs, C., … & Van Soom, A. (2017). Proteome of equine oviducal fluid: effects of ovulation and pregnancy. Reproduction, Fertility and Development, 29(6), 1085-1095.
5. Massenkeil, G., Alexander, T., Rosen, O., Dörken, B., Burmester, G., Radbruch, A., … & Arnold, R. (2016). Long-term follow-up of fertility and pregnancy in autoimmune diseases after autologous haematopoietic stem cell transplantation. Rheumatology international, 36(11), 1563-1568.
6. Davis, I. (2018). The experimental conception hospital: dating pregnancy and the gothic imagination. Social History of Medicine.
Can someone please help me certain sights give different days. I’m pretty intune with my body, I lost a baby almost 5 months preg in Jan. We are currently trying to conceive again. On this app along with the one I used to ver pregnant before said my fertile time was the 13 to the 18th ovulation happening on the 17th. We bnb had sex the 14th and 16th and I know I ovulated on the 17th I got really bloated and my cervical mucus was slippery. What r the chances of possible conception. When I got pregnant with my daughter in October we only had sex twice during my fertile wk but one day was during my really wet slippery day. I’m just so anxious I feel like I’m not whole since I lost our daughter
Hi there Stephanie, sorry to hear about your loss. Here are some tips on knowing when you are ovulating for conception:
https://womanjunction.com/check-cervix-position-signs-ovulation/
Thank you Alison
I saw my period 22 March to 25 of March and I had sex on 26 is it possible that am pregnant
Hi Rachael, Not generally. You would even have been close to your fertile period right after your period ended.
Hi I had sex the day my period was ending. It was unprotected and he did cum in me. Is it possible to get pregnant that soon after?According to the calculator is not in my fertile window….Which is April 15-20. I had sex on the 6th and 7th. Is the window the only time you can get pregnant?
Hello Nikki, in your fertile window you are most likely to get pregnant. Some women have still gotten pregnant even outside of their fertile window.
Hi my last day of my previous cycle was 24 March 2018 I am assuming that I am ovulating now!!!
I had protected sex jan 27 which failed and I notice after I had started my period. Is it possible I could be pregnant ? My cycle usually last 4 days max.
Hi Kimmi, if you started your period than most likely no.
If I got my period on the 27th of February and my boyfriend and I had sex on the 12th of March and he didn’t pull out can I get pregnant?
HI Selena, that was during your fertile period, so it’s quite possible that you could get pregnant. I would recommend a pregnancy test if you miss your period.
Would u recommend me taking a test on April 5?
Hi Selena, that’s a perfect time. You could even test earlier around the 1st of April with confidence that the test would be accurate at that time.
I had sex on March 12th while I was fertile and he didn’t pull out then we kept doing it and not pulling out now it’s march 26th and I am bleeding light but a lot with a negative test what does that mean?
Hello Selena, please retest for pregnancy 7 days after a missed period.
Hi, i am on the pill and i just started a new pack about a week ago after i finished my 7 day brake of which i had a period. I took the first three tablets and then missed a weeks worth of pills during that week i had sexual intercourse every night but then had a bit of bleeding as though i started my period again. I then started my pill again (today 14th , yesterday 13th and the day before 12th of march) and i have stopped bleeding. The fertility calculator says i was ovulating in the week i missed my pill and had sexual intercourse, could i be pregnant?
Hi Shannon, if you missed that many pills it would have been best to start an entire new pack and it would take a week for your body to get back on track when you start taking them again. You definilty could be pregnant especially if you were having unprotected sex during that time frame.
Okay thank you, i am also a bit worried as i carried on my pill of the same pack for 4 or 5 days then missed the last week but did not have intercourse, it is now the 3rd day into my brake week (monday) and I don’t usually get my period until the Thursday and last night my partner was fingering me and i started to bleed very heavily, more than i would have it was my period but i am uncertain of what it was as it could have just been an early period but it has calmed down after 2 days whereas my period usually lasts about a week.
Hello Anonymous, this could have been an early period, however, you seem to be experiencing a bit of irregularity.
I had unprotected intercourse the day my period ended, like I bleed throughout the day then after a bath that night it stopped then I engaged in intercourse. But he did not ejaculate at all. We then had intercourse from Oct 31st-mid november ALL in which he did cum inside of me. When did I conceive? I am currently weeks pregnant with a little boy. My period usually comes every 28 days but that month I had 2 periods one on the 3rd of Oct to Oct 5th then one again on the 28th with dark brown spotting the night of the 27th. It only lasted from the 27th being dark brown to the 28th and 29th.
Hi Erica, if you know how many weeks you are you should be able to calculate the timeframe as to when you got pregnant. It could have been in November or October if the period at the end of October was implantation bleeding.
I had my period on 26th February and had unprotected sex on 3rd March. Can I get pregnant
Hello Linda, yes you might have conceived.
Hi last month I went to my periods on 6 jan and stopped 8 then on this month before my menstrual date I started spotting 4 days before my periods which was 30-2 then on 3 I started to go to my periods as usual so should I be worried or am I pregnant I sometimes feel some small cramps on my abdomen and when I press the left side is hard and feel small pain and right side nothing
Hello T Girl, if you had a period then you might no be pregnant, however you if you think you are you can go ahead and take a pregnancy test.
My last cycle was on the 16th of January. Ovulation was 25-2. Was sexual on the 27th. Could I be pregnant?
Hello Alisha, the best thing to do is to take a pregnancy test to rule this out. Most accurate if taken 7 days after a missed period.
My menstrual should’ve came on today February 13th but it hasn’t. I took a pregnancy test on February 9th. Should I test again or wait another day for my menstrual?
Hi Alisha, If your period was due on the 13th, I would recommend waiting until 7 days after it should have started to retest, which would be the 20th.
Hi I had my mp on 10th of January and we met with my hubby as from date 26th up to 2nd January could I be pregnant?
Hello Millie, yes you could be pregnant.
My period was on 14 jan 2018 when is my crucial date or fertile days
Hello Lavina, use the below link to calculate your most fertile days:
https://womanjunction.com/
My name is Tina and my last period was Jan 16th and I had sex on Jan 26 the could I be pregnant
Hi Tina,
If you consider when your fertile days are, which if you are on a 28 day cycle, they would have been January 25th-January 30th. So it’s quite possible that you might be. You’ll just want to wait to test until if you miss your period next cycle.
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so if I had unprotected sex on 1st DEC 2017 and use contraceptive and receive my periods normal on that month 6th of Dec,and the next month flow fails.what might be the course of the failure?
Hello Fellie, your period might be a bit delayed which is caused by various reasons: stress, traveling, drastic change in temperature, exercising, etc.
So, I DID have (ALOT of) protected sex but the protection failed the last time. I used the morning after pill within hours. But we – as we see were on my fertile time. Now I’m 47 but I’m every month, have a family history of late in life babies & late menopause – infact my gnyo says I’m like a much younger woman… Im reading all this stuff about the morning after pill maybe not working on a fertile day, on a heavier woman – Im not huge but I’m definitely overweight- it says my period should have shown up on the 22nd it’s the 24th . Im nauseous, do you think I could be pregnant???? I’m in a long distance relationship & I am getting ready to get my tubes tied – Oh this is definitely not a planned thing…… HELP!!!
Hello there Jen, once the pill was taken within the period labeled on the instructions and all other conditions were met then you should not be pregnant. However, if your period does not return in 5 days then take a pregnancy test.