I have been trying to get pregnant for the last 2 years and haven't once. I am constantly on my period it never stops. I went to the doctor they diagnosed me to have low progesterone so they gave me progesterone pills that worked for a month but again I started and it wouldn't end. I went back they put me on a high dose of birth control to try to level everything out and it didn't work. So, does having low progesterone levels cause infertility? Or has anyone experienced this?