Hey guys,
My doctor said that going to the gym is fine if that is what you have been doing all along. Taking up some really strict diet and exercise when you haven't done that before can have an impact, but she told me that it is great to be healthy and happy, and the medical profession promotes exercise every day, so I doubt it would affect your fertility.

My SIL overdoes it though, and it can affect how often she gets her AF. If she falls below her BMI rating, she misses her AF. Although I think this is a weight issue rather than an exercise one. Providing you're not overdoing it, I don't think there would be a problem, but maybe check with the doctor if you are noticing that your AF or cycles are a bit different,

Best of luck!