LETROZOLE// FEMARA

Kat
I'm on my last day of letrozole. It's my first round. Before that, I was taking supplements that helped me it get my period back and ovulate on time. My question is, can I start back on those supplements tomorrow or will they counteract the letrozole even though it's the last day on it for this round??? 
List of supps:
Vitex
Evening primrose oil 
Myo-inositol 
Ovaboost
Fertilaid 
I mainly just want to take vitex, ovaboost and myo-inositol again.