HHHEEELLLPPPP

Hey y’all!!! So I’m almost 3 weeks late on my period. I took a pregnancy test about the day my period was supposedly supposed to be here according to the app. (It says I’m 8 days late but keep reading). I saw a very faint line. My friends saw a faint line. My family saw a faint line. But.....I went to the doctor bc I was sick,they did a pregnancy test,like a pee one. They said I could be pregnant,that it was to early to tell,then told me if it don’t start in a few days to go to a OBGYN. But that the test came out negative. That was Saturday. It’s Wednesday night and I still haven’t started. I’m really confused. I’m not stressed about it. Just really confused. Can someone ppplleeeaassee tell me what to do?