Lulubee.... my FS always said I wouldn't need progesterone support as my body will produce it, however my immune specialist, Dr M (same as Bbhope) disagreed. P4 levels above 50 are fine for normal women, but my levels first came back at 150, and still Dr M upped my progesterone from 2 x 400mg pessaries a day to 3 x 400mg pessaries a day. I've had the P4 tested each week, and the levels have been fluctuating slightly 150, 140 and last week 165, and still he didn't decrease my support. I read somewhere on Bubhub, that one lady only stopped the support when her progesterone was about 500, so if your level today comes out between 50-150, I would be asking for the script. Some women on here are having up to 5 x 400mg pessaries a day, as someone recently mentioned how difficult it is lying down that many times a day!!