At 4 1/2 weeks pregnant I had a very faint positive hpt then a couple days later I had very heavy bleeding for four days! I previously had a miscarriage the month before at 4 1/2 weeks. My hpt were negative shortly after so I knew I had miscarried. This time I am now at what would be 6 weeks and I am getting a very dark positive! Is it possible I didn't miscarry this time?! Even though I had very heavy bleeding for four days? Why are my tests getting darker? I plan on making a doctor appointment this week. The not knowing is killing me!