The key to controling estrogen is to start out at a low amount then slowly increase the AI if needed. You run into these complications by blocking/removing to much estrogen.

2 weeks into the cycle there is no dang way you need 40mg of Nolva ED to control estrogen the Test hasnt even kicked in yet.

If nolva is all you can get to control estro start out low 10mg ED then bump up if needed.

Nolva is a serm though and is best saved for PCT.