I started having bleeding Sunday. It wasn't heavy at all but was more than spotting if that makes sense. Went to the ER and my blood showed really low levels of hcg, only 32 when my calculations had me at 3 weeks. The bleeding stopped at the ER and I've bled  a little more at home with cramping (mild/moderate) and my pregnancy symptoms seemed to vanish. I figured I was having a chemical. I get my blood retested Wednesday. However, my pregnancy test are getting positive more quickly & are darker. What could this mean? I'm probably grasping at straws here but could I still be pregnant or do you get darker test before your hcg levels go down?