i would run clomiid first for 20 days and then followed by nolva for 15-20 days depending on suppresiveness, nolva is a stragiht anti-e but clomid is a combination of 2 drugs an estrogen and an antiestrogen, so i get bad rebound 4-6 days after stopping clomid b/c the half of clomid that is the estrogen has a long halflife unlike the half that is the anit-estrogen, so then run nolva for the end, just my two cents