My RE makes you give it up while he is treating you. I have it up prior to this IVF cycle.
I gave it up with all of my pregnancies. I have enough issues without adding something that's avoidable. If I had normal pregnancies, I might would do the one cup per day.
This. I didn't do IVF, but my RE was clear to abstain from caffeine entirely. When I was pregnant the first time I did have some, but not more than one cup of tea per day. Caffeine didnt cause my losses but I don't want to risk anything that could jeopardize this pregnancy.