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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Sarah
My period did not come on September but came on October 2nd. When should I take a pregnancy test.
Hello Sarah. I may need more details to answer your question.
I did an implantation that lasted only 3 weeks and was pulled out because of pores. After that I did not see my flow not until the 3rd of September. On the 3rd of October, I had an unprotected sex, Am I going to be pregnant?
Once the implant is removed, you can get pregnant as soon as possible. So if you had unprotected sex on Oct. 3, there is a possibility you got pregnant. You can wait for a few more weeks and get tested to confirm
Hi, I saw my last period on the 3rd September 2020 and I had unprotected sex on the 13th of September. Would i get pregnant? When is my next period date with my ovulation date please? 🙏
Hello Ruth! How long does your menstrual cycle last? If your cycle lasts for 28 days, your next period date is expected to come on October 1-3 and your next ovulation date is around Oct. 11-15.
Hi i had my period on Sept. 7 and ended on the 9th. I had sex on the 12th of September and I am yet to see my period on October 1. Pls can i be pregnant?
Hello Es! Your period is expected to come on October 5-7. If in any case you are delayed for a few more weeks, you can get tested to confirm your pregnancy.
Had my period on 31st of August and have not seen it to date. Is there any chance of being pregnant?
Hello Angy! I believe I would be needing more information to answer your question. How long does your menstrual cycle last? When did you have an unprotected sex? Delayed period could be also cause by other external factors such as stress, lifestyle and other things including pregnancy.
Hi I am a nursing mother I put to bed six months ago and I am on exclusive breastfeeding. I gave birth in March and my period returned on July 10th and I had a cycle of 32 days from July to August which normally I usually have cycles of 29 to 30 days. So I have had my period in July and also in August but for Sept it’s yet to come I have used pregnancy test strips and negative results have been popping up. Please I’ll like to know why my period hasn’t showed up yet. Is it because I am breast feeding is it supposed to cease once it has returned after childbirth? Thank you please I await your response.
Hello Taylor!
Congratulations on your bundle of joy! You don’t have to worry. It is normal for periods to stop especially if you are breastfeeding. On some instances, breastfeeding moms don’t get their periods for months and in your case, you had your period after 4 months. The hormones that produces milk also stops ovulation causing the irregular periods during your lactating phase.
I had my first sex on 28th of May and I was supposed to see my period on the 3rd of June. But I saw it on 30th of may which lasted for about 7 days and my menstrual cycle changed to 24 days from 27/28days. So, I saw my period in June and July but my menstrual cycle came back to 27 in August and I noticed that the previous 3 months menstrual bleeding didn’t flow like it used to and now in September it’s already the 27th day of my menstrual cycle but I’m yet to see my period. Can I be pregnant??
Hello Shuck!
It seems that you are having an irregular period that is why your menstrual cycle changes from time to time. It could be caused by different factors such as stress and I suggest you visit your doctor to know what could possibly be the reason for this.
Hi pls. I had my last period on July 31 and it ended August 3. I had sex on August 28 but it’s already September 2 and I haven’t seen my period. Could I be pregnant?
Hello Diva! Given your last month’s menstruation, it is possible that your period is just delayed. It could be due to a lot of factors. You could wait for a couple more weeks and if your period hasn’t come yet, you can do a pregnancy test to confirm.
I got my period on 16 July and it lasted until 20 July. Then i started again on 25 July until 29 July. I have not had a period since then. I am not sure whats happening
Hello Zozo! Does this happen on a regular basis? It looks like you are having irregularity on your menstruation. I suggest you consult your doctor regarding this matter as early as now.
I had sex a day before my period which is 4th feb2020 when cld I have concieved cz I missed my march periods and am now in the 6th month of pregnancy?
Hello Donah! Your possible conception date is Feb. 10 – 25. I hope this helps.
Hello,my last period was on 30th June and on 22nd July I had unprotected sex. So far have not received my menses and yesterday I made an attempt to test by not satisfied with the results.
Hello Doreen!
How long is your menstrual cycle? Is it regular? If it is, you can expect your period to come around July 28-Aug 1. You can then test again if it is still late.
My last period was 30th of May and I waited for my period June but didn’t see it till July 4th it came out and I am still breastfeeding. please what is my menstrual cycle because before giving birth to my first baby my menstrual cycle was 28 days but now am confused because sometime is comes 28,30,32. Please help me so I will know my faith. thanks
Hello Faith!
If you are still breastfeeding, it is expected to have irregular periods and your menstruation cycle could be longer than usual or even shorter. Don’t worry because once you reduce the amount of time in breastfeeding, your cycle should return to 28 days.
I had sex June 3rd and saw my period June 10 and didn’t have sex, felt sick and vomiting June 23 and saw my period. not sure if it’s period on 26th of June or is it likely I am pregnant
Hello Bimbo!
If you have a regular period, June 3 should be safe to have unprotected sex because you are out of the fertile window and you had your period on the 10th. The blood on the 26th could be spotting caused by a harmless hormonal imbalance. However, it is best to consult your doctor if you are still feeling sick.
Last period was may 28 had unprotected sex on 31 may please when is my period in june
Hello Jane! If you have a regular 28-day menstrual cycle, you should get your period by June 25.
How would I know if I’m having irregular periods or missed period?
Hello Janika, A normal menstrual cycle lasts 28 days, plus or minus seven days. Menstrual bleeding is considered irregular if it occurs more frequently than every 21 days or lasts longer than 8 days. Missed, early, or late periods are also considered signs of an irregular cycle. You need to track your period for 3 months, and if it persists you need to visit a doctor.
Hi my last period was on the 11th of April and it lasted for 4 days…on the 20th of same moth had unprotected sex…usually my cycle is irregular ….now its the 10th of May still no sign or symptoms of period or pregnancy. I’m worried cause I’m late for my next period
Hello Poshy, I recommend that you do a pregnancy test but there can be lot of reasons for a missed period or late period like stress, weight fluctuations, exercising too much, etc.