Menstrual Cycle Calculator & Calendar: Calculate Your Next Period, Ovulation & Due Date
Medically Reviewed by Dr Anique Ali Last updated: November 23, 2019
Use this menstrual cycle calculator to calculate your next menstrual period, fertile period and due date. To give you an estimate please provide the following information:
Menstrual Cycle Calculator & Calendar: Calculate Your Next Period, Ovulation & Due Date
About The Author
Daniella Hall
Mom to an amazing and crazy toddler, Aaron, with a passion for women’s health and wellness. One the side she also loves being outdoors, baking and creating cooking videos with Aaron
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I saw my period on 14th of march and had unprotected sex on 5th April , I run a 30 to 31 days cycle and up til Now have not seen my period. Am I pregnant?
Hello Amaka, that is possible but there is also a lot of different reasons for a missed or late period as well.
I saw my period on the 3rd of Feb 2020 and still saw it on the 3rd of march 2020,but am yet to see it up till now,what could be the cause.
Hello Ruth, longer than normal periods can occur because of stress, a hormone imbalance, pregnancy, infection, a thyroid condition, and other causes. You should make an appointment with your health care provider
My last date of my period was 13 Feb 2020 and the 18 same month I was having unprotected sex and in January the 7 -9 I was having miscarriage is it possible to be pregnant
Hello Dina, there is a possibility that that might happen.
I saw my period on the 31st of DEC 2019 and it lasted till 5th January 2020 then since then till today 18th February 2020 I have not see my period, what should be the problem?
Hello Favour, there is a lot of possible causes of a late period:
Stress.
Perimenopause.
Weight loss.
Obesity.
Birth control.
Hormonal conditions.
PCOS.
Pregnancy.
My last period was 31 Dec and I had unprotected sex on 10 Jan will I be pregnant ?
Hello Aidy, there is a possibility depending on how long is your cycle usually.
I had my period on the 21st of December 2019. I had unprotected sex on the 2nd of January 2020 and my period has not come till now. Am I pregnant?
Do you have regular periods? When was your period due?
Get a Home pregnancy test done. With very little information you’ve shared, it looks like pregnancy but confirming it is a necessity.
I saw My last mensuration on November 15 and I saw this month mensuration on DEC 12. I had sex on December 10 to 15, am I safe from getting pregnant?
Hello Bola, those were your infertile days, so it’s safe to say that chances are minimal.
my period supposed to come out on December 1st 2019 but didn’t and I had unprotected sex on 2nd Dec, can I get pregnant because I still have not seen my period.
Hi Lucy,
If you were supposed to have started your cycle on December 1st but it didn’t come it could have just been late. You can be late sometimes due to stress or just miscalculating the days from your last period. If you were to have gotten pregnant if would have been around November 11th to 15th.But if you just didn’t start yet due to stress and you had sex the following day you wouldn’t be in any danger of concieving during this time period.
I had my last period during November 9th and it ended around 13th when I’ll have the next one
Hi Debbie,
That would depend on how long your cycle is. An average cycle lasts 28 days. If you have an irregular cycle you could have 23, 30, or even 35 days between each period. In order to predict when your periods are due you would need to keep a journal of the day of each period for the last couple of months. and count how many days are in-between. If your cycle is 28 days your next period should be on December 7th.
those faint ink in the calculator period what does it mean
those indicate two days before and after the actual period days.
I menstruated on 3/11/2019 for 4 days and had unprotected sex with dear husband from 11/11 to 18/11 and again I started bleeding today 30/11 is it normal or implantation bleeding
Hi Tiamiyu,
If your last period was 3/11/2019 your fertile window would have been around the 17th. Conception could have occurred between the 13th and the 21 st. Implantation generally occurs 10 to 14 days after conception so it is very possible that this is implantation bleeding. Not 100% positive but a trip to the doctor should confirm.
Hey…i had a medical abortion abortion in march,2019….i bled for 16 days and got my first periods within 4 weeks after abortion….from my 1st periods to till date i have light flow menstrual cycle than my usual one….before abortion I bled for 4-5 days and now i hardly bleed only for 1-2 days…now it’s been 8 months after my abortion and I am not getting back my usual periods,I’m worried…should i go to see the doc?
It’s normal to have lighter periods after abortion and you’ll be just fine after a couple of cycles. However, if the problem persists, consult your doctor to have a detailed medical check-up and to rule out other causes of light menstrual bleeding.
my wife saw her last period on the sixth of last month and her present period is the same sixth, when is her ovulation date and how many days cycle is that?
Hi Dauda Danjuma,
If her last period was October 6th, and she had another one November 6th she is on a 30-day cycle. Her ovulation window – or the best time for her to conceive would be the 20th. Ovulation could start around the 13with the 20th being the most fertile day.
I saw my period on the 11th of August, next on the 14th of September and next 16th of October….How do I know my next cycle and my ovulation period?
Hello, ovulation usually occurs around 10 to 16 days before your period starts, so you may be able to work out when you’re likely to ovulate if you have a regular cycle, since your period is a bit longer sometimes you should look for the signs of ovulation. Examine your cervical mucus – you may notice wetter, clearer and more slippery mucus around the time of ovulation.
can someone seeing her periods be pregnant
Hello Oma, despite all of the claims out there, it isn’t possible to have a period while you’re pregnant.
If you’ve had a positive pregnancy test and are bleeding heavily, seek medical care.
I had my periods in September, I haven’t seen my next periods yet. is it normal?
Hello, Jane. One missed period can be due to hormonal imbalance, or stress. If you miss only one, there is nothing to worry about, but if it continues to the next month, you should see a doctor.