Petrified

I have birth control he pulls out and only ever finishes on my tummy or my back but for whatever reason I can’t shake the thought that I’m pregnant. My sister said when she got depo she didn’t fr her period afterwards. Mine is 3 Days late. Well technically 4 since it’s 5AM. If I’m pregnant my mom might literally murder me Ave my sister is kicking me out😐😐 idk if I’m paranoid because everyone around me is either pregnant or gas babies already or what 🤔🤔