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Most of us are aware of the ‘normal’ menstrual cycle,  28 – 30 days with ovulation occurring around day 14.

What you may or may not know is that most of us don’t run like clockwork! You can ovulate anywhere from day 9 to day 28.

You can even have a regular menstrual cycle yet not ovulate at all.

Once released at ovulation, an egg will be viable for 24 hours so knowing when this is greatly increases your chances of conception.

Sperm need to be present within your reproductive system during this tiny 24-hour window for conception to occur.  Sperm live a little longer than our eggs and can stay viable in our system for between 3 – 5 days so your most fertile days fall 3 days before and on the day of ovulation.

So how do you know when or even if you’re ovulating?

One of the easiest and most popular ways to pin point your unique fertile window is to chart your temperature.

The hormonal changes that occur during the menstrual cycle influence our Basal Body Temperature (BBT). By charting your temperature each morning you will begin to establish a pattern that reflects your individual changes.

Using a digital or mercury oral thermometer, you need to take your temperature via mouth (or vaginally, however whichever method you use, you must stick with this method as vaginal temperature is slightly higher than oral temperature) at the same time each morning before you get out of bed.

You need to have had at least 3 hours sleep and must not eat before taking your temperature as this can interfere with the accuracy.

When you ovulate your temperature will rise and remain higher for at least 10 days before dropping back to the starting temperature ready for the next menstrual cycle to commence. Your most fertile days fall 2-3 days before temperature reaches it’s peak and for about 1 day after.

You should also notice a slight drop in temperature before the rise.  This drop can help you predict that ovulation is about to occur, indicating that you are commencing your fertile period.

When charting your temperature it’s important to be mindful that other external factors, aside from hormones, can influence basal temperature.  These include:

  • Being unwell
  • High stress levels
  • Shift work
  • Interrupted sleep

The below chart is an example of the temperature changes you would expect during a ‘normal’ menstrual cycle. Your chart will not necessarily be identical, but should show the same drops and peaks in temperature.

If no changes are noticed, this may indicate that you are not ovulating.

OvulationChart610x430

You can record your temperature in a journal or you may wish to download free charts from the Tools and Resources section of the Zycia website.  Alternatively you can download a free iPhone app to record and store your results.

Whatever method you choose to record your results, stick with it.  The longer you chart your temperature the better you will begin to recognise your unique ovulation patterns.

Knowing your body and when you ovulate greatly improves your chances of conception each month. It’s also a great way to get in touch with your body to really understand your cycle so you can more easily recognise any changes, symptoms or abnormalities.

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  • We just did it, any time. We didn’t have to check out fertile times. Luckily I must have been pretty fertile

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  • I did the temperature way when trying to get pregnant with mine and it worked for me.

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  • I am one of the lucky ones that gets pregnant really easy!

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  • I used a website called fertility friend to help me chart, I loved it.

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  • Good tips about noting it by temperature some I didn’t know

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  • Thanks for this really useful article – some interesting tips!

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  • I’m the same as Meedee, we tried everything from temping to ovulation kits and every other thing we could possibly try and when I decided that I was having a month off it all and just relaxed, went out drinking and just didn’t think of it we fell pregnant!

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  • I wish this sort of thing was talked about when I had my first, it would have helped so much thanks for sharing

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  • Definitely know when I’m ovulating….. there’s pain :(

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  • Thanks for this, with your other tips I hope it gets us over the line soon.

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  • thanks for the tips and great read

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  • Temping really helped me when we were struggling to conceive. I gave me a feeling of control and also allowed me to be more in tune with my body. I do think that the information should be more readily available and understood by doctors as mine didn’t seem to be very interested in talking to me about it all.

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  • Really great tips and advice here, thanks for sharing.

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  • I remember when I was going through IVF and having to write down dates take temperatures go for scans.
    Thanks for sharing with us.

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  • a very interesting read, especially for those who are trying to conceive

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  • I was lucky, my body was like a clock and ran smoothly

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  • Thanks for this really useful article

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  • A great article with those perhaps not understanding the whole ovulation process

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  • Especially useful for those who may have been struggling with getting pregnant. Depending on how you look at it, I was either lucky or unlucky as I only had to sneeze to fall pregnant. It must be heart-breaking, frustrating and demoralizing for those who have difficulties.

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  • Good info I also use an app they help a lot too, to help with keep track of it all

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