Period late

So I've had sex on Wednesday with my..I don't want to say boyfriend yet???? (Lol it's a long story bout him and I) anyways my period was supposed to come yesterday aka Thursday but I took a morning after pill since he and I did it without condom. He hasn't done anything sexual till he saw me which has been a week and a half and he didn't cum inside of me but on my stomach, I've been feeling pre period cramps aswell but idk if I should worry or not please help :/