Infertility & Progesterone

Hi,

I've always had irregular periods, before going on the pill aged 26 I had either really heavy clotty ones or really light ones. No pain though. I've come off the pill at the beginning of this year and I think I ovulated the first month and had a 3 day period but since then nothing and no sign of my period. Went back to the doctors and have had my blood tested- it's come back all normal inc progesterone. I was really surprised as I am convinced I have mild poly cystic ovaries (a few years ago they said I had a few on one of my ovaries). I'm waiting for my referral to the fertility clinic and another scan but am wondering how my bloods can be normal if I am not ovulating? 

Anyone had a similar experience- just wondering what to expect in the next stages .