BFP then bfn at doctor and another BFP

Alyssa

I got a faint BFP this morning so I gave my doctor a call and they did their own urine test there. It came up negative she said. She also did a blood draw but said it will probably be 24 hours. I took another test this evening and I still see a faint line. I should worry right? I'm only a couple days late so I might be jumping the gun. But after 2 misscarages I cant help but worry.