If i have unprotected sex and my period starts two days later can i still get pregnant?

No : If you have sex immediately before your period you can't get pregnant.

You didn't : You could have gotten pregnant but we know you didn't since you had a period. If you don't want to be pregnant please see a doctor for birth control. Eventually unprotected sex will need to an unplanned pregnancy. Be responsible. Use condoms and birth control until you are ready.