How to decide if and when to grow our family

My husband and I have two girls 15 months apart. Our oldest will be 3 this month and our youngest will be 2 in February. We always talked about having 2 possibly 3 children but we just cannot make the decision.

I don’t want to miss the window of opportunity and have our potential last baby too far behind the other 2, but we just don’t know how to make the decision. Our second was a bit of a surprise, so we really didn’t have to decide to get pregnant again and now my mind is playing devil’s advocate. Every time I think things are nice the way they are with just 2, I’m disappointed. When we think of adding a third, we panic 😂.

Did anyone else deal with this? Any advice would be great! ♥️