I had an unprotected sex on may 3 but thn later got my periods on may 10 and also on june 10 now my period is delayed by 10 days am i pregnant?

Unlikely, but...: Consider doing a home pregnancy test. Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A correctly done urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened) or 1 week after missing a period.