Needing some advice about surgery

I am thinking about having weight loss surgery in a few months I got all my paper work done and my doctors are on board, but I want to have another baby and I’m struggling with if I should wait til after or have one before. I just don’t want to have the surgery then get pregnant and possibly gain a few pounds and it ruin my shape I feel silly for even saying that I just don’t know what to really do and was needing some advice or hear what others think??