So frustrated...

Good afternoon ladies,

I am a mom of 3 boys and trying to conceive my last baby. Any I have never needed meds from my doctor to try and conceive, I have had all my babies by c-section due to my 1st boy being to big, I have taken provera for a few months, and I just started taking metformin, I had a progesterone test done on cycle day 21 last month and my number was 0.6, I was told I'm ovulating but not high enough numbers to conceive, doctor wants to do a laparoscopy with dye to check my uterus, cervix and tubes to make sure I don't have a blockage, I'm frustrated because last month I got a positive opk on cycle day 19, and today is cycle day 19 this cycle, I tested at 5:15 am before work and my test was negative, I then tested shortly after getting off work my test was still negative... is this normal?? My doctor hasn't said I have pcos but by me having cycles were my numbers aren't high enough to conceive makes me feel that I might have it.. any insite on this... Do I keep testing or just give up this month??? Thanks and sorry for the long post my cycles are usually 30-35 days they vary a by a few days each month.. here is a pic of my OPKs so far this month I'm using the clearblue digital tests