I'm the OP. I just talked to Dr. Davis at Cornell and he said there is no problem with using Cialis or Viagra when doing IVF or TTC. He said it's not uncommon for men to take it and he sometimes even prescribes it for men who are having trouble producing a sample. Just following up in case anyone ever reads this and wants to know.

My husband has ED and has to take Cialis for us to have sex. We have gone back and forth between him not taking it out of concern that it could somehow affect his sperm, to him occasionally taking it when I'm in between IVF rounds. My RE said it was fine for him to take, but I worry about anything that could lower our odds in any way. Have any of you ladies researched this or received advice from your REs on whether Cialis is safe when TTC?