Hi CluckyGirl,

Not really sure on what are high and low levels, only really know the same as you - that you need around 30 to maintain a pregnancy. My progesterone levels on CD21 on my last cycle of clomid were 142 and I was not warned that it was excessively high. One side effect of clomid is multiples, so this may be why, or it may be because more eggs are produced. Not sure, congrats on ovulating though
Hopefully next month will do the trick.
Good luck!