Hi! A week ago today I had unprotected sex & my boyfriend finished in me. I’m not on the pill and I was ovulating, the next day I took a plan b that afternoon but read some stuff saying that plan b isn’t effective if you’re already ovulating.. I took a pregnancy test today from the dollar store and it was negative but I don’t know if I should rely on that because I don’t know if my hcg levels were even high enough or if it’s too soon to even tell. What should I do? And do y’all think there is a pretty good chance the test results could change later?