Am I Pregnant?

Ok so literally 2 weeks ago I had unprotected sex with my ex. He didn't finish in me he pulled out. This app said I was at a 33% chance of getting pregnant. It freaked me out. Anyway I'm supposed to start my period by the 5th of April but normally I start up to a week early. I've had my mood swings and slight cramping but no period yet. Should I take a test or no? Also I've been eating a lot more lately without getting full idk if that's a sign of pregnancy or not🤷