Progesterone levels vary considerably from cycle to cycle and woman to woman, both non-pregnant and pregnant. So the levels can only be averages and they change with the timing of the cycle. In general, the midluteal (middle of the second half of the cycle) progesterone in a non-pregnant patient is 8 to 10, but can be as high as 20 ng/ml. In a pregnancy cycle, it should be greater than 10 to 12 ng/ml to have a better chance of a good pregnancy outcome, but in general, we like to see 16 or over.
I found this online ... so it sounds like at least I'm in the good range! =D