My boyfriend and i were having sex , with a condom . it slipped of during withdrawal and stayed in me . my period is due 8 days if i get that period am i not pregnant?

Probably OK, but...: Protection against pregnancy (and STDs) probably is complete, or nearly so, when the penis withdraws from a condom retained in the vagina. Regardless, a normal on-time period will be strong evidence you didn't conceive. However, you need to get on proper birth control ASAP. Many or most couples who rely on condoms for contraception eventually become pregnant.