Hello,
You can walk and do exercises when you are ovulating and it should not interfere with conception but do exercises in moderation.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
Exercise must be done in moderation. Goodluck