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When Are You Most Fertile After Your Period?

Identifying the time in your cycle when you are most fertile is one of the most important things you can do when you’re trying to get pregnant. If you know in advance when you’re most likely to conceive, you can consciously try during that time. If you don’t know, there’s every chance you could miss your opportunity in that cycle, have to wait as long as a month before you have another opportunity to get pregnant.

Your menstrual cycle causes several dramatic changes to your body but none is more ‘visible’ than your period. If you understand your cycle, you may be able to use your period as a landmark, to guide you to when you need to be trying, if you want the best chance of getting pregnant.

It’s not the case for everyone: if your menstrual cycle is very irregular, simply tracking your period may not be enough to give you an accurate assessment of when you’re likely to ovulate. The best thing you can do is make sure you’re informed, so you can make the best choice for your particular situation.

Your Period and Ovulation

The key date for your fertility is not your period itself, but when you ovulate. Ovulation releases a fertile egg from the ovaries that remains viable for no more than 24 hours, so you need to pinpoint when you ovulate to ensure you’re trying to conceive at a time when sperm have a chance of reaching that egg within that key 24 hour period. As sperm can survive, on average five days after ejaculation, which means you’re actually looking for the date five days before you’re due to ovulate.

Your period is the beginning of your cycle and you ovulate approximately half-way through it. for most women that’s between 12 and 14 days after your period (with your fertile window starting 7-9 days after your period). That’s not true for everyone though, and even if your cycle is very regular it’s well worth taking at least one test to confirm when you ovulate with authority, so you can then simply track it on the calendar.

It’s then that you’re most fertile: mark out your next period on the calendar. Count forward the number of days it normally takes for you to reach ovulation, then count back five and you’ve outlined your fertile window, when you stand the best chance of getting pregnant.

Find out more about core temperature technology and fertility here