Im scared!!!

Okay so I'm only 15 and I think I might be pregnant and its only been like a week so it's too soon to take a test and I had a pregnancy scare like two months ago and this is the second time we had sex since then and Idk if I'm paranoid or if it's real I just wanted to try and get some support, or if I end up being pregnant how to tell my mom. Also some tips on how to get an accurate test would be nice two. Thanx please no hate I'm really scared😥😥