So my boyfriend and i had sex but he wore a condom and comed in it and then whip his penis of and stuck it back in but he didn't come inside me. i was on my period like 2-3 into it and i took the plan b pill. do i still have a chance of being pregnant?

Pregnancy unlikely: Pregnancy is unlikely because one was on her second or third day of her menstrual period and because she took Plan B after sex. However, the boyfriend can go to the store and buy a box of urine pregnancy tests. One can keep the tests and do one in 3 weeks to confirm non-pregnancy. Meanwhile, consider asking said boyfriend to stay away until non-pregnancy is confirmed (just as a friendly reminder).