11 weeks postpartum and already thinking about another

Hi guys, I wanted to ask peoples opinions on planning and trying for another baby this soon after giving birth.

I knew right after having my son I wanted another. Our original plan was to start trying again this September when he would be 9 months old. But now my partner has come out and said he’s up for trying now and I’m kinda considering it… Are we crazy? What’s it like having a very small age gap? Is it doable? Are there any risks with getting pregnant so soon? Any and all advise is welcome!! Thanks in advance!