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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Hi!! Alison I had unprotected sex in august my last period was on 8/13/2018! Had sex on 8/16 8/17/ and on my fertile days are 8/21 8/22 8/23 8/24 8/25 8/26 8/27 and so on…until 9 /1/2018! On 9/3/ 2018 9/4 /2018 /9/5/2018! I experienced some type of bleeding when I looked it up it said implantation bleeding…on cycle day 22- 23- 24. My period was due on 9/10/2018! She never showed up! Then i waited 2 more weeks nothing!!! Could I be pregnant? Please let me know something!
Hello there Valencia, you might be pregnant. Take a pregnancy test to determine if you are pregnant as soon as possible.
Hello mam,previous month dec 27 my periods starts and end 30 dec. This month 7 Jan periods starts and now continue, mam can u tell me what is the actual reason???plz tell me..
Hello there Baisakhi, you need to see a doctor for a physical assessment to determine what is really happening with you.
I suppose to see my period on the 8th of Dec but I only see small blood doesn’t wet my pad does that means am pregnant
Hi there Fabulous, take a pregnancy test to determine if you might be pregnant. What you have described does not necessarily mean you are pregnant.
Hey my last period was started on the 18th of October nd ends on the 22nd nd now we make unprotected sex on the 17 of November all this happened this year nd I’m still waiting for my period is it possible for me to be pregnant
Hello there Zoh, yes you definitely seem to be pregnant.
Comment Text*I saw my period on October 19 I have sex with my hubby on November 2,3,4 on 7th I started discharge white watery discharge is it possible to conceive
Hello D Noble, yes having unprotected sex leads to pregnancy.
I had my period October 25 it lasted 5 days then me and a friend had sex only one time on November the 2 but he pulled out but I put it back in , is it possible to be pregnant?
Hello Alissa, once sperms were passed up through the vagina you might be pregnant.
I had my last period between Sept 25 or Sept 26 and it lasted 5 days. As of writing my period is late. However, the result of my pregnanct test is negative. Is it possible that my period is just delayed given that my menstruation is regular?
Hello Maine, do a pregnancy test 7 days after your missed period.
Pls how can I calculate my last menstral period using my Expected delivery date? Am 12 weeks gone and can’t remember when I saw my period last. Will have to go see the doctor soon but don’t know what to say if he asked when last I saw my period. Please kindly help out. Thanks a million times.
Hi there Jane, use the below link to calculate this:
https://womanjunction.com/
I had my period 21-24 Sept ,then second week of oct I had spotting for 2days can I be pregnant confuse
HI Jade, this could have been ovulation bleeding, which is normal sometimes. If you don’t get your period by the 21st of this month I would take a pregnancy test.
My last period was at 08/26 then I had unprotected sex at 09/14-09/15 and 09/17 then begain my pre-period light bleeding colour light red n Brown 2days 09/25-09/26 is it still save or am I pregnant?
Hi Maggie, have you taken a pregnancy test? If your last period was 8/26 then you are a bit late for your next period.
I saw my period on 28 of September and finished on 1st of October ,had unprotected sex on 4th of October..and started menstruating again on October 9th it’s normal or my pregnant
Hi Judith, that would be around the time of ovulation so that could be ovulation spotting/bleeding. That should have only lasted roughly three days at most and wouldn’t have been as heavy as your regular period. You shouldn’t have been in your fertile period until roughly the 8th which is why I would connect the bleeding to ovulation. You should anticipate your next period somewhere around the 26th of this month.
I had my last period from 10 of September to 13 of September now on the 6 of October,am bleeding again, could this be my usual period or implantation bleeding?
Hi Becky, If it’s lighter than your regular period it could be implantation, however, getting your period within the 25 day range is reasonable and nothing to be worried about. It could be your regular period.
I had my period on 30 august but it two days heavy but rest 3 day didn’t come much and had it on 22 September and that one lasted for 5 days and also have unprotected sex on 5 day of period could i conceive
Hi Anifa, It’s normal to have a shorter cycle. I would say on the 5th day of the period you wouldn’t generally be able to get pregnancy however, if your cycle is really short you might be able to get pregnant at the end of your cycle. However it’s not likely.
I had my period on 9th Spt-14 had sex on Spt 29,30 and 1st of October 2 and 4th of October
What’s the chance of me getting pregnant
Hi Ras, your fertile period would have been the 19th to the 23rd of September. So it doesn’t seem likely that you would have gotten pregnant. You should be expecting your period within the next day or so as well. If you don’t get it I would take a pregnancy test.
Hi my last period was 15th of september and i had sex with my boyfriend last 25th of september after 2 days i had a very light spotting, am i pregnant?
Hi Shey, two days later wouldn’t be implantation bleeding, that is far too soon. However, the 25th was within your fertile period so you could have gotten pregnant. I would wait until your next anticipated period which would be around the 13th of October before taking a test however if you think you might be.
1st day of my last was period 8/17, had unprotected sex on 8/30-8/31, began my pre-period/spotted 9/9-9/10 bleed for 1 day & ended. Should I be concerned or what are my chances of being pregnant?
Hello Meme, yes you might have conceived.