Pregnancy, Birth and Beyond

Calculating the time when you are ovulating increases the likelihood you will fall pregnant. Women's menstrual cycles range between 20 to 45 days long (the average is 28 days). The ovulation calculator can help you work out when you'll next ovulate. In order to get pregnant you need to get the sperm to meet up with the egg as soon as possible (ideally, within 12–24 hours) after ovulation. And the best way for this to happen is for the sperm to be in the tube already waiting for ovulation. To use our Ovulation Calculator enter the first date of your last period, along with your normal menstrual cycle length in days to estimate your fertile period for conception.

		Ovulation Calculator         First day of your last period:         Average menstrual cycle length: 20 days 21 days 22 days 23 days 24 days 25 days 26 days 27 days 28 days 29 days 30 days 31 days 32 days 33 days 34 days 35 days 36 days 37 days 38 days 39 days 40 days 41 days 42 days 43 days 44 days 45 days

So when does ovulation happen? It was once thought that ovulation occurred about 14 days before you got your period, which is, if your menstrual cycles are 28 days long, 14 days after the first day of your previous period. However, research indicates that you can ovulate anywhere from day six in your cycle to around day 21. (Each cycle begins on the first day of a period.)