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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My boyfriend and I have been trying to concieve for a year as of Christmas Eve this year. We have had no luck what so ever. According to this calculator, I was supposed to start my period on the 10th of december and it hasn’t come yet (today is the 19th). I took pregnancy test and it was negative. My period is never regular so I never know when I’m ovulating. So we have unprotected sex every day that I’m not on my period and we still have no luck. What should I do?
Hi Emily. This guide includes some helpful tips on how to get pregnant. good luck
My periods was on 27th Nov 2015 and i had sex with my patner on 16th & 17th december will i get pregnant or not… pls suggest me how to avoid the pregnancy
Hello, If you had unprotected sex its possible to become pregnant,you can avoid a pregnancy by taking a after morning pill but it is only effective up to 72 hrs.
Hi I had a D&C on 2/11/2012 and my flow started on 9/11/2012 and then i had a second flow on 21/11/2012 though after the first flow I had unprotected sex and took contraceptive my cycle is usually 28 days. please I’ll like to know my next period and ovulation days as am yet to see anything. Thanks!
Hello, Your next menstrual period is expected to start on December 19, 2015, and You next most fertile period is December 03, 2015 to December 07, 2015.
Hi I’m 20 Years old I am trying 2 get pregnant I always start my period around the 17 and my cycle lasts about 5 days so when will I ovulate?
Hi my last period was on Nov 11 it lasted for 3 days. i had unprotected sex November 25-29…..On December 10 my period came and lasted 1 1\2 days. is there a chance that i might be pregnant??
Hi, If that was actually your period and not some other form of bleeding associated with pregnancy you are not pregnant because you cannot be pregnant if you saw your period.
Please,i had my menses on the 8th of December and ended on 12th December. I had unprotected sex on the 18th of December,Can i get pregnant?
Hi, Yes you stand a chance of becoming pregnant whenever you have unprotected sex.
Hi jane, I am in the same boat. Period on december 23-25, 2015. BF ejaculated three times on period on Christmas day and stopped immediately the next morning December 26, 2015. Period calendar states ovulation from December 26, 2015 to January 1, 2016. What should I do now. Have no period just a slight light brown stain. Help
Hi, I had my last period in December 5 and made love with my BF december 9. And he ejaculated inside me. My normal cycle is 28 days but this time my cycle was 23. (Previous mens was November 12) what are the chances of me getting pregnant? I am not ready yet. Thank you and I hope a quick response.
Hi, Once you have unprotected sex you stand a chance of getting pregnant,wait a week or 2 and take a pregnancy test.
Hello , I’m seeking advise. I recently had unprotected sex on the 10th of dec today is the 17th I usually have my periods on the 22-25th . I’m a little scared because he came inside me more than once. Eventhough my period hasn’t started yet could there be a chance that I could get pregnant?
Your chances of being pregnant depend on whether you were fertile on or around the date that you had sex. Can you confirm the number of days in your menstrual cycle and the first day of your last ? This information is needed to provide you with the most accurate response.
Hi. My gf and I had unprotected sex on 15 Dec. Her period was Nov 20. But we opted for an after pill because we ain’t ready to sire kids. When should she expect her next period!? Is there a possibility of conception even after using after pill? Please advise.
The date of her next period would be dependent on the number of days in her cycle and the first day of her last period. This information was not provided so we cannot tell. Yes it is possible to conceive again after an abortion.
I saw my period on 4/12/2015 and my cycle is 28 days. When will my ovulation occur and my next period? Please, I need your reply urgent. thanks
Your ovulation dates are December 24 to 28, 2015. The next period is due on January 9.
I had unprotected sex on the 5th of December and my due date is the 21:St I took the pill ???? the next day on the 6th. Will I come on now or on my due date?? Help anyone.
The morning after pill may cause a disruption in your menstrual cycle. This means your period may come before a after your due date.It’s jus a matter of wait and see.
My previous period is 11November BT at this month I not get my period 36day go what is the reason I never do sex BT I am afraid why my period is not coming plz reply me fast
A friend had her menses on 25th October and had sex on 13th November. She took Postinor2 on that same day and her menses came on 18th of November instead of 25th November but her menses is not in its one day late and the pregnancy test is still negative…Is she pregnant? What might be the cause?
It is possible that she’s not pregnant. The Postinor 2 is very effective if it is taken immediately after sex. Her period may be late if she’s stressed or experiencing an emotional situation. We’ve compiled a list of eight things that may be affecting her cycle…read more here http://womanjunction.com/8-mess-period/
Hi my name is Cassie and I’m curious I’m now 29 weeks pregnant and going by my sonogram there stating the first day of my last period was May 26th 2015 but I didn’t bleed till the 29th of May. I had protected intercourse on May 27th and protected intercourse June 5th. I’m sure one of the intercourse wasn’t so protected but I’m curious what day would most likely be the time I got pregnant?? There stating June 8th was the day I conceived and my due date is Feb 29th 2016 I need answers
Hi, Well its hard to be exactly sure the exact time you conceived , what the doctors did was give you a estimated time they think you could have gotten pregnant.
Hi my name rachel i had unprotected sex on the 8th and i started ovulating on the 12 and i had unprotected sex on the 14th could i be pregnant
yes, you could as you had unprotected sex during your fertile window
Hi My Last Period Was On Sept 28. I Have A Boyfriend That I Been Dating For A Year We Don’t Use Protection, But On Oct 11 Me & My Kids Father Had Unprotected Sex. I Find Out I Was Pregnant On Oct 31 , I Conceived On Oct 12 I’m Just Confuse Who The Father. I Need an Answer.
Hi, The only way to completely be sure who the father is by doing a DNA test.