4 bfp at home, bfn at doctor

Rachel
Over the past week I've done 4 hpt and all were bfp. Had a dr appt today and the urine test there was bfn. They did draw blood, but I'm not sure I even want to hear the results. Has anyone had a negative urine test and still gotten a positive blood test? (I do think it bears saying that I've done nothing but pee today). I need hope, I'm hoping one of you can give it to me. I'm heartbroken.