Am I pregnant?

So I've stopped birth control after being on it for about 2 years & ive had unprotected sex and a pregnancy scare Bc my partner said he thinks he came a little inside. So I took a pregnancy test 5 days exactly before my missed period and it said not pregnant. So I assumed okay I'm fine I'll just wait, three weeks pass and still no period but no pregnancy symptoms at all & still no period so I took another test and it came out again as not pregnant. At this point it feels like I've been waiting for my period forever and I haven't had unprotected sex sine the very first pregnancy test. I'm thinking maybe it's just my period being irregular since I stopped BC. But it's freeking me out Bc where the fuck is my period????