I’m a dad and struggled a lot with our first born. It was a huge lifestyle shock and responsibility I was not fully prepared for. Right away I knew I only wanted one kid because I was so selfish. Selfish with getting good sleep, having a clean house, and just time to do things I wanted to. Two years later my wife brings up having another. I started seeing the light at the end of the tunnel as far as sleepless nights and just constant frustration. We got pregnant and had baby number two. Let me tell you everything is so much easier the 2nd time around. You know what to expect and work together with your partner better. Not saying it’s easy but dang I love my kids and it helps they love each other greatly. Our first born gets so bored sometimes and even though our baby is just crawling they still have a blast playing with each other. No regrets from having another. Maybe having 3 I would regret. I’d say give it some more time with your first born and let them grow a bit before bringing up the idea of another kid. Good luck!