The best way to start to understand your body and your own individual 'fertile window' is by keeping a 6-month record of your menstrual cycles. It’s a bit of an older method and while it's never 100% accurate, it should be able to give you a good picture of your most fertile days...

So, how do you do it? Count the days from the first day of your period (Day 1) until the day before your next period started - this is one full cycle. Find your shortest cycle in the six months and subtract 20 from the number of days to estimate the first day of your fertile window. Then, find your longest cycle and subtract 10 from the number of days to estimate the last day of your fertile window.

For example, if your shortest cycle was 28 days, then the estimated first day of your fertile window is Day 8 of your cycle (28 – 20 = 8). If your longest cycle was 32 days, then your estimated last day of your fertile window is Day 22 of your cycle (32 – 10 = 22). So your fertile window is from Day 8-22 of your cycle.

Remember, you need to keep this diary after you go off long-term contraception to make sure you are ovulating. A combined approach, if you are willing to check your daily temperature and mucus changes, should give you greater confidence in understanding your cycle.

For other tips, feel free to give me a call, email or live chat. I’ve always got a few extras up my sleeve, and there’s no question too big or small.

Good luck mums-to-be!
- Deb