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 there,
Am 34 years old and am looking to conceive again but I have tried so many time but without success. When I was 25 I had a surgical abortion since then am not about to conceive again I need advice please. I am worried and I need a baby
Thank you
hi, please check this post for some tips
I had my last period from the 15 of Jan through to the 19 I’ve been having on and off protected sex with my husband it’s now the 18th of Feb and my period have not started yet should I be worried??
Hello Kay, According to the information you provided you were most fertile between the 25th and 29th of January. Pregnancy is always a possibility when having unprotected sex. Good Luck!
My last period was jan 23rd and my husband and I started trying for our 3rd baby we had sex the 3, 5, 7, 9! My period should be on the 20th of February but we are praying we are pregnant. do you believe we timed it well and conceived?
Hello Jenn, Your timing was pretty good. According to the information you provided, you were most fertile on the 5th of Feb. Good Luck to you!
My last period was on the 24th January 2016,and had unprotected sex on the 31,1,3,5,6,8,11 is there any chance of me being pregnant. I really want to be sure of myself.
If you have unprotected sex, you can get pregnant.
not if your pullout game is strong
Hi I was supposed to have my period on 16 Feb but I have still not had it I feel am having the symptoms of getting my period I had a urine test but was negative. Please can u still ve a negative results and still be pregnant
Probably not, check our FAQ page for some reasons on why your period might be delayed or skipped.
I had my last period on the 18th Jan 2016,had sex on the 29,30 and 31st Jan 2016…I haven’t seen my period this month could I be pregnant?
depending on your sex life, you could be. I would recommend tracking your period, and taking a test if it never shows up.
Last January, I was 7 days delayed and had my period on Jan. 12. Usually, my cycle is 30 days. This month, I’m 8 days delayed. I’m not having any symptoms of pregnancy. My boyfriend and I are sexually active. We had protected (condoms) and unprotected sex but when we enganged in unprotected sex, he always withdraw. Could I be pregnant? Or could my cycle change? I was sick from Jan. 30 – Feb. 1, could this effect the change in my menstrual cycle?
Honestly, it is probably a change of cycles. Keep an eye open, and track your cycle. I’m sure everything will be okay 🙂
Pls I want to know when is the right time for one to have sex without getting pregnant? I had my last menstrual period on the 26th of January and it finish on the 29 of January.
Thank u
Have protected sex. Unprotected sex at any time can lead to pregnancy.
Hi I noticed blood on October 6 2014 and its 2016 and my period has never come back since October 6 2015 is it normal?? im 12 and im scared please reply..
Please go to the doctor.
Hi my last period started on 24/02/20216 and I have this mood swings and certain food aversion and I can’t go without eating hot wings each day,chocolate and cake and am not a sweet tooth person but this days.could I be pregnant
If you had your period, and haven’t had unprotected sex, then no you are not pregnant.
I did have unprotected sex two days before my ovulation. I slept with him on the 2/02/2015 and my ovulation was from 5/02/2016 till 9/02/2016.still haven’t had my periods
I would wait a week after your expected period, and if no sign then I would recommend taking a pregnancy test.
My last period was on 13th jan 16 to 17th jan 16 and I had a unprotected sex with my boyfriend on 21st jan and after 1 hour of my unprotected sex I took 1 ipill. This month my period date was already over but not yet start.so is there any problem ? And is their any chance to pregnant???
You took the pill so no you shouldn’t be pregnant.
We have been trying to get pregnant for almost a year now. We had a mc in July last year. My last first day of my period was Jan 23 and we had sex through the whole month. I’m due to have my next period on Monday. We had sex on Feb 4, 8, 11, 12, and the 13. Is there a chance we hit my ovulation day? I hate to be worrying about this but we’ve been trying for quite awhile now. I’m getting a little discouraged that I haven’t yet gotten pregnant. How early can you tell if you are?
Yes there is definately a chance (YAY!!). Do not be discouraged, as I know it can be frustrating to concieve. You can tell one week after your missed period.
Thank you….hopefully I know soon!
Hi I had my period on Jan 19 I had unprotected sex Jan,28,29,30 31 feb,1 3 ,4 I usually get heaviness in my breast before my period comes today but I don’t feel a heaviness in my breast I rather feel sharp pain in my left lower abdomen pls what does this mean
You might be pregnant Lisa. I would track your cycle, and take a test 7 days after missing your period.
My partner started her last period on the 9th if Jan. We’ve been having sex. She hasnt seen her period yet. And she complained of severe stomach pains this night. Similar to mentrals cramps..but this is severe according to her. Could she be pregnant?
Since you had unprotected sex, yes, she could in fact be pregnant. I would recommend taking a pregnancy test as soon as possible, and going from there. Good Luck!
I has sex with my boyfriend in July 27 2014 and fell pregnant! I gave birth to a healthy baby boy on 16 June 2015. Ever since there had been problems in our relationship as I am thought to have cheated on him but I didn’t! How long is gestation period other than 40-43 weeks? We also went for paternity test with the results of 98.99%! My boyfriend does not want a second opinion as to the probability should be from 99.99% – 100%! Help me!
The baby is his, end of story. The paternity test wouldn’t have been so high if it wasn’t his. Talk to him, and if he still accuses you of cheating you need to make some tough decisions. Good luck dear, I wish you the best.
I saw my period on 28th January and ve sex on 9th February could I be pregnant. Cause I feel something heavy in my chest, weak
Hello Vivian, if you have unprotected sex, you could become pregnant. Track your cycle, and watch for changes.