Another baby

Has anyone else and their SO talked about having another baby? We currently have two daughters. 3 year old and a 5 month old. We started talking about if our 5 month old would be our last or if we would try for another and hope to end up with a boy 🤞🏻 I'm only 22 and my husband is 24, we've been married for a year, together for 5. We had our first daughter when we were 19& 21. I feel like it would be smart to call it quits on kids, let them grow up and then grow old with my husband since our girls will be out of the house while we are still fairly young. But I feel like I'm too young to already be done having kids and I would DIE to have one more, especially if we could try for a boy. But obviously we can't guarantee having a boy. Have any of you started talking about having more or stopping now?