Lotus... if one was to test for their estradiol only, would that be of any use if it wasn't measured against progesterone?
I ask as I can get an estradiol test done cheaply by my own referral so I wondered is there say a "cap" where you'd go "well irrespective of what her progesterone levels are that estradiol reading is way too high" ..
Or is there no point and you must measure it against progesterone.
Thanks