I NEED MAJOR HELP/ADVICE

ok so my boyfriend and i frequently have sex on the pill, without condoms and he doesn’t cum in me. well unfortunately today we decided that it was okay to ejaculate inside me and now i’m very worried about my period showing up next week. i always take my pill everyday and on time, givertake 30 mins - 1 hour max. My period is expected to come wednesday so please let me know if should take a plan b? or just wait until my period since i am on birth control…