How do I calculate my menstrual cycle?

To calculate your menstrual cycle, count the days from the first day of one period to the first day of the next. This is your cycle length. The average cycle is 28 days, but it can range from 21 to 35 days.

Can I get pregnant right after my period?

Although on average most people ovulate mid-cycle, meaning their fertile window (the six days each cycle when they could get pregnant) falls around then, too, it is possible to get pregnant right after your period if you have a shorter cycle. Sperm can live for up to five days inside you, so if your cycles are shorter, ovulation would happen soon after your period. That means you would have a chance of getting pregnant around that time. So if a baby isn’t on your to-do list right now, always use a reliable form of contraception.

Menstrual cycle calculator: When to expect your next period

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