Progesterone levels on clomid

Susan
Hi, has anyone else had a blood test done on their equivalent of day 21? I have had mine done this month now I'm on clomid at it's come back at 90! 
​When I've googled it the internet says that's first few weeks of pregnancy, but I can't find anything that says what it should be like on clomid. I did a pregnancy test this morning and it was negative, I'm due on my period Sunday if my ovulation day as I thought. 
​I just want to know, I'm waiting for the doctors to get back to me, I hate the two week wait!