Is the doc your seeing a Fertility specialist because it sounds really strange all the blood tests. I went to Sydney IVF and the FS gave me a BT on day 21 to see if I ovulated, I didnt have a scan to look at folicles though.

Progesterone of 12 either indicates you havent ovulated yet, or you have really early on.

Without clomid I always ovulated on day 21 (having PCO) and with Clomid (50mg from day 2-5) I ovulated on day 17. I took it for 5 cycles. Different for everyone though, if you do regularly ovulate your ovulation will be closer to 3-5 days after your last tablet, my FS said to DTD from day 10 for us every 2 days until day 20 to over all bases. Hope this helps, how did you go this cycle? do you have any more results? If you are pregnant your progesterone will stay high, ie around 30 - 50 when your AF is due.