My period is almost 2 weeks late and i was wonderig if i had sex 3 days prior to when my period was expected, can i still get pregnant?

Yes, it happens: You can get pregnant anytime during your cycle, albeit less of a chance around the time of your menstrual flow. The chance is much higher during time of ovulation--mid cycle for most folks, but it can happen at any time. My suggestion would be to check a hpt---it is quick, easy, and quite accurate. If negative, repeat in 5-7 days to confirm. Consult doc for problems. Good luck.