Blood test cd 21

Alicia
I just got prescribed clomid, 50mg, days 3-7. This will be my first cycle taking it and will be used for hyperovulation seeing as I do ovulate but am not getting pregnant despite all tests coming back normal. My question is, does everyone get a blood draw for progesterone when taking clomid? I haven't heard of this before but my doctor is ordering it. I'm not opposed just curious if others go through this as well? Thanks for any responses and if anyone else has any success stories while using clomid, it would be greatly appreciated :)