Menstrual cycle     Ovulation kits     Ovulation signs     Pregnancy

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Using a Menstrual Cycle Calculator

Please select the first day of your last menstrual period:

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Usual number of days in your cycle:

If you want to stand the best chance of getting pregnant, then you need to know when you are ovulating. This is the time of the month that you are at your most fertile, and thus stand a greater chance of a sperm reaching the egg and fertilizing it. One of the biggest problems people have however is knowing how to calculate their menstrual cycle. This is where technology can come in useful. You can use items such as a menstrual cycle calculator which should provide you with a rough estimate about when you are next going to ovulate. Let me tell you a little about how these work.

Menstrual Cycle Calculators vary in complexity, some will ask you for information such as your average body temperature, as well as various other bits and pieces about what your body is currently going through. These types of cycle calculators often give the most accurate results, but many people find that they are ‘over kill’, and the majority of the information that they ask for is not something that people will have to hand readily, especially months of data about the subject. Therefore many women use simpler menstrual cycle calculators, which still give fairly accurate results.

The first thing that the menstrual cycle calculator will ask you is the date of your last period. Hopefully this should be information that almost any woman should be able to answer fairly easily. This will be the starting date of the last period and not the ending date.

The next piece of information that you will be asked for is the average length of time between your periods. This is the ‘length of the menstrual cycle’. Of course, the human body does vary wildly here, and whilst some months there could be 30 days between your period, and others it could be as low as 25. However, you are only after an average here. Do try to be as accurate as possible though as this will affect the results that you are given, and this of course will have a profound effect on what the calculator tells you is the ideal time to try for a child.

Finally you will be given your results. Generally you will be told the date of your next period, which should be fairly accurate. What you are going to be most concerned with however is the next ovulation period. This will be the time that you are at your most fertile and therefore stand the best chance of getting pregnant. What you do need to remember though is that the information isn’t 100% accurate as it is impossible to predict the human body, so ideally you would want to start having sex a couple of days before this, and a couple of days after.

Whilst they aren’t 100% accurate, the menstrual calculator is still a useful tool. It provides a ‘free’ way of knowing when you stand the best chance of getting pregnant, and this of course can be a god send for a couple who are struggling with this.

Learn more about Menstrual Cycle and how to to calculate it manually.

276 Responses to “”

  1. Ray says:

    Please could you reply to this

  2. imu says:

    Hi,my last period started on 27th October 2014 ,which lasted for four day.it is today ,25th November 14,what shall I draw from this,?

    • Clepetark says:

      If you have your period that you have a 28 days cycle if not that you have a longer cycle … your question is very incomplete …

  3. MK says:

    Hi I’m so confused I had my period on the 16th of October till the 22nd. I had unprotected sex on the 19th while on my periods,is it possible that I’m pregnant for I’m late by 6day already,I stopped breastfeeding my 24months old in september just wondering if this could have an impact in my circulation.

    • Clepetark says:

      Hi, yes there is a chance for getting pregnant even if you have unprotected sex while having your period especially if you just stop breastfeeding your hormones will set you slowly on your new cycle.

      Good luck

  4. Rosa says:

    hello i got my period on October 2/14 and i was suppose to get my period on November 2 and i still haven’t gotten my period im 17 days late ive been cramping on and off lighted headed and discharge an stomach been hurting i haven’t taken a hpt yet. do you think that i can be pregnant and what advice can yall give me.

  5. Sharon says:

    Hi my period came on 19 Nov and I want to know when I will be ovulating.

  6. bolanle says:

    Pls I had my last period 20 October but I had sex 26 October and have not seen it this month. Is it possible am that am pregnant ? And the problem I have is that I don’t know how to calculate my ovulation period thanks.

    • Clepetark says:

      Hi , the regular fertility window is between day 10 and 17 of your cycle, day 1 being the first day of your period, hope it will help

      God luck

  7. Puccaface says:

    Hi, the first day of my last period was oct 18th, this past month I started taking ovaboost to help me with ttc…anyone ever tried them? Haven’t had a period yet

  8. LilRed says:

    Hi so I had my period September 31 thru October 2nd and again October 16 thru October 22nd . My next cycle was suppose to come on November 10th but it didn’t it was 8 days late and came on today November 18th, it is very light and don’t really seem normal I dnt gave cramps ir anything. I took a pregnancy test when it was about 3 days late which came back negative. And besides it coming on back like it did the previous months my cycle is pretty normal and my average is a 25 day cycle and I’m wondering is there a chance I can be pregnant?

    • Clepetark says:

      Hi,

      If you did your test as per the label, being 3 days late there is no reason for you to believe you are pregnant.

      Good luck

  9. elaine says:

    my menstrual cycle start on Oct 31 to Nov. 4. then we had unprotected sex with my boyfriend on November 5 and 6. is there a possibility to get pregnant in this period?

  10. Chloe says:

    Hi… I’m just not sure.. I had my period on Oct 26… And stop Nov 3.. and I had sex Nov 6.. and I’m not sure what to expect.. lately I’ve been blah pukey kinda breastfeeding been hurting.. and it said I was ovulating Nov 7-11… possible I could be pregnant? This would be my second baby. Or would it be too soon.. I’m not suppose to get my period till Nov 23..

    • Clepetark says:

      Hi,

      well test yourself once your periods late but hormonal disbalance due to your breastfeeding could give you these symptoms as well.

      Good luck

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