Please help!!!!!

I had a chemical in Jan. I got a bfp at 3:00 am may 1st.... I tested again today and line is a lil darker.....my breast have stopped hurting and I haven't had the metallic taste I normally have and my lower stomach is cramping.....have anyone had symptoms leave and they pregnancy we're was normal???? And did breast pains come and go? Or could this be a sign of another chemical?