Doctor doesn’t want to track my progesterone


Hi I just had an ultra sound today at w5 d5 and my doctor has only checked my progesterone once last week because I basically insisted. Today at the appointment he didn’t want to check my progesterone because he says that using progesterone supplementation isn’t proven to help and can be invasive and expensive. I left the appointment feeling uncomfortable with him not wanting to track my progesterone. My progesterone was at 14 last week and because I have pcos Im nervous it will drop. Any advice will help! Thanks