I went to my first doctors check up this was a month after I found out I was pregnant (they wouldn't see me sooner because I was a new patient) well the assistant came out and said well your test is positive but the line is faint. On my at home tests the lines are very dark so I don't know if I should be scared? They did an ultrasound to see how far along I was and they saw baby's heart beat nice and strong 140bpm. So this makes me confused because baby looked fine. I am 8 weeks pregnant .