Trying to conceive? Knowing when you ovulate and when your fertile days are can increase your chance of getting pregnant.
Try our ovulation calendar below to discover when you’re most likely to ovulate and be in the fertile stage of your menstrual cycle.
Around 14 days after you ovulate, and if you’ve had intercourse during your fertile period, you can take a pregnancy test to see if you’re pregnant!
How to use the ovulation calendar
Take note of the fertile days that will be highlighted on the calendar, as these are the best days to have intercourse (right before you ovulate and soon after) since sperm can survive for several days in your body.
You need to know two things for our ovulation calculator.
#1: First day of your last period
You need to know the first day of your last period to calculate your cycle and fertility days.
Did you know: if you’re pregnant, day one of your period is considered to be day one of pregnancy? This is because it’s a certain date your health care provider can calculate days from, since the exact time of conception is often unknown.
If you don’t know the first day of your last menstrual period, it may be tricky to work out your fertile days. You may need to wait until you start your next menstrual cycle. Or, if your period doesn’t turn up and you think you might be pregnant, you can take a pregnancy test.
If pregnant, you can have a dating scan, which is an internal ultrasound, to help determine how many days pregnant you are.
Find out more about early ultrasound scans.
#2: Cycle length
If you track your cycle (if you don’t there are lots of fantastic and free cycle tracking apps available!) you should know your average cycle length. The average cycle length varies from woman to woman, and helps to make your result a little more accurate. If you don’t know what yours is, 28 days is usually used as the default.
Other fertility indicators
When you’re trying to get pregnant, there are a lot of signs and signals from your body to indicate you’re in a fertile period.
Basal body temperature (BBT) is another method to help identify ovulation. Using a BBT thermometer, you simply take your temperature each morning before rising, and jot them down in a chart (or on an app). Right before ovulation your temperature will dip, followed by a spike. If pregnant, your BBT will stay higher.
An ovulation calculator on its own is not the most reliable method of identifying your own unique pattern of ovulation and fertile periods. Good luck!