hehe mrs boyts....i know what that is like. Now provera works 1 tab twice a day for 7- 10 days and you should expect af from 4 to 7 days after that, now i think it mimics the LP by providing your body with progesterone then when you stop it the amount of progesterone drops quickly mimicking normal hormone drop which brings on af. Now im a bit confused by your bloods....day 21 it to check your progesterone level to see if you Od.....not sure why you would have a blood test on day 2 of AF ?
Hope that has helped on some way and not lead you up the garden path.
Dell: Yay for bloods i bet you have a great number and a sticky little bubba, and dont worry about having 2 little ones....life gives you nothing you cant handle and m alway here to lend a hand ill just fly to where you are.
BFT : Your cd 36 and you have a long cycle, which would suggest that you would O later too, (generally it is 14 days post your af) which would make O time around CD 24....Your other hormones listed that maybe your body was geering up to O after you had your test...just a thought. I dont O until cd 20 ish and this was only found with us, bloods and opk's. good luck and keep us posted when you see your fs.
Chook im thinking of you, i hope your ok.