Help please

Emma

Almost 48h ago i had sex, he started without a condom and then he put it, and ejaculate in it.

The thing is, that yesterday my period should come, and it didn’t, and I verified now, and the time is 13:14.

The chances to be pregnant are minimal, because it was with 2days before “menstruation”, but I’m really scared because it didn’t come. And i still can take the pill, but I’m not so sure.