Before I started my (first) IVF cycle last month, I was working out 5-6 times a week (running, weight lifting, bootcamp-type classes, Olympic lifting and yoga). Once I started my stims, I cut out the high intensity classes but continued with yoga, modified weight lifting and running (slow & steady, not intervals).
I'm currently in my 2WW (day 6... sigh) and only doing walking & yoga. Which is mildly frustrating. On one hand, I think I needed a mental break from the gym. On the other hand, it was such a good stress release & a way to keep my mind off things for an hour.
As for my diet, I've kept it pretty much the same as before. I tended to eat on the lower carb side but I'm trying to relax some of my "food rules" to allow myself to eat pizza or cookies if that's what I want. I spent many years dieting and talking myself out of eating "bad" foods. The majority of my diet (~80% or more) includes good quality meats, fish, eggs, yogurt, vegetables, fruits and fats (from avocado and nuts).
I stopped using protein powders and a greens powder (Genuine Health's Greens+) because the labels recommend pregnant women to consult a doctor before using. I didn't want to risk anything.
I have probably gained 5 lbs during this process due to the drugs and slowing down exercise. When the nurse weighed me on egg retrieval day, I was only 3 lbs more than my typical weight. My clothing mostly still fits... though I'd rather wear pajama pants!
But like berrymore said, if the procedure works, it will be worth a few weeks away from my fitness routine. And if it doesn't, I can just go back to running, lifting, etc. I might register for a half marathon or something. A new goal to distract me.