Pregnancy Scare?

So i’ve been with my boyfriend for almost a year and we had unprotected sex on November 24 but i was scared so i stopped like 5 seconds in and my boyfriend said he didn’t cum ( sorry for details haha) But i got my period like eight days later but i’m awaiting my period now but i’m still anxious if i still may be pregnant, because according to my app it says i’m 5 dayslate, and also the fact that i researched pregnancy and period crap and it said you could still get your period even if your pregnant and i’m an anxious mess someone help