Never been so confused, please help!

After testing positive all weekend with cheapies, frer and clearblue digital, I went to the doctor today to confirm. The test at the doctor came back negative, and she called it an early miscarriage. After being devastated and crying most of the afternoon, I decided to torture myself and take another cheapie. Sure enough, faintly, it's positive. Wouldn't have the doctor said if the line was faint but there? I wasn't able to do much of a urine hold before my doctor's test, only about an hour and my urine was pretty clear. I pushed for a blood test and am awaiting those results. Anyone have any thoughts?