Am I pregnant or dramatic?

So..my period ended July 8th. my boyfriend have been having unprotected sex since then. I downloaded an ovulation app (well 3 of them lmao) but they all said different dates so I don’t even know when I’m ovulating. When I try and track it I get mad because it’s confusing, well lately I’ve been more tired/lazy and I won’t really eat, when I do eat i get nauseous but never throw up. If I was to be pregnant would it be too early to show any symptoms? I had just gotten off birth control (nexplanon) May 21 and didn’t get my first period till July 5. Lately I’ve been wanting a lot of sweets, like last night I ate 3 salted caramel bars and didn’t even feel nauseous but earlier that day I couldn’t even eat pizza.