Progesterone inhibits FSH and LH and so remains high during pregnancy. Days 1 to 12 – oestrogen gradually increases and peaks approximately on the 12th day. Progesterone, LH and FSH stay ...

It acts as either an estrogen receptor agonist or antagonist ... ¹ While TRT also raises testosterone, it inhibits the HPG axis, decreasing FSH and LH and increasing the risk of oligospermia ...