Most women ovulate about two weeks before their period starts, so you probably had unprotected sex during your ovulation period. There is a good chance of you getting pregnant.
You can do a pregnancy
test from the first day of your missed period.
If you have regular periods, you’ll probably know when this is.
If you’re not sure when your next period is due, you can do a pregnancy test 21 days (three weeks) after you last had unprotected sex.
or do a b hcg