My boyfriend and I had sex without a condom on Sunday (oct 19) and he pulled out but still got some on me. I am on birth control (Viorele generic of Kareva) but i missed saturday (oct 18) and so i took 2 on sunday, my last active pill and the first placebo pill. I took Plan B within 36 hours and now its friday and still havent gotten my period. I usually get my period sometime on Thursday. I know that plan b can seriously alter a girls cycle. My progesteron must still be too high but im concerned i wont get my period because ill be starting a new pack on sunday. Could i still get my period on my active pills? Im trying not to stress but im not ready for child.