Pregnacy, hormone therapy and MS

[DIM]

Our gynecologict wants to give my wife clomiphane citrate and chorionic gonadotropin hormone (Pregnyl) in order to increase her fertility as she tries to get pregnant.
I have read two trials about clomiphane that suggest against it in MS due to increased relapse rate after therapy but can't find something for HCG, one big trial says it stops type II diavetes progression while other small study says it may increase relapses, what to believe?
Her thyroid hormones are at normal levels and this week she has a blood test for progesterone, estriol, estradiol, FSH, LH etc