Negative blood test and urine

I'm on day 44 of my cycle! No spotting, no period, occasional mild cramping, some mood swings, sore boobs......still negative urine and blood test! I'm so upset and confused! I thought for sure I was pregnant! The doctors want to give me provera to "jump start" my period, but I don't feel comfortable with that! I'm also have creamy white CM and sometimes watery! I have no idea what's going on! Any advice?????