Am I Pregnant?

Zantoria

Hi Everyone, for the past 4 days I have been getting faint positive pregnancy tests. 2 days ago, I went to the ER because I have bad cramping and lower back pains. The doctor did a pregnancy test and it came back negative. I have been testing still and they are positive but still faint. My last cycle was Jan.11th, I had sex on Jan. 24 (Sorry about the TMI) so that would be almost 3 weeks ago. Has anyone gone through so many faint positives but were indeed pregnant? Could I be to early to have enough HCG in my system?