How do you know?

I just had my second baby 7 weeks ago. We have a boy and a girl now and I thought we were done. I just can’t get over this being my last first baby smile or words etc. I’m not sure if that’s justification for having another. I know we’ll know for sure in a few years. I am really excited looking forward to being able to really go do stuff with the two I have as well. I feel like both ways has positives and negatives. We could afford a third. Anyone else in the same boat? What are your thoughts? I guess I know I want another but I can’t logically justify it and at the same time I’d really love to just focus on my two now 🤷🏼‍♀️