My husband and I are trying to conceive our 2nd child. I was a week late starting my period. My period started on Saturday and was very very heavy, the heaviest its ever been. On Sunday my period stopped and then started again but was extremely light for 3 days. I had an std check and it came back negative. Also I had a home pregnancy test that came back a faint positive but three negative blood tests. I need to try to figure out what's going on. My obgyn can't see me until June and my husband is military so to go anywhere off post I have to have a referral. The ER just did the blood work and std check. What Could be going on?