Progrsterone levels with PCOS

After trying to conceive for a year I was diagnosed with PCOS and am now on round 2 on clomid. When they took my blood to check my progesterone to see if I ovulated it only came back at a 6.51, but my doctor said that was good. It didn't lead to a pregnancy and I have read that levels should be at a 15 with medication. I'm just wondering if anyone got pregnant with clomid and what was your progesterone levels.