How many days would you have to wait to see if you have your period after uprotected sex?

You typically need to wait about 14 days after unprotected sex to see if you have your period, as this is around the time when your menstrual cycle would normally indicate a missed period. If your period doesn't arrive, it's advisable to take a pregnancy test for confirmation. Keep in mind that individual cycles can vary, so some may need to wait a bit longer.