Could I be pregnant?

I took a pregnancy test this morning at 5 am it said I was pregnant. I took another one and it said I wasn’t. I took 2 more tonight and they both said negative. I’m just trying to figure out if it’s false. If I’m pregnant I wouldn’t be to far along. I’m birth control so I won’t find out if I miss my period for another week, but I don’t wanna keep taking it if I am. Please help