What's wrong with me?!

I'm 34 weeks pregnant with my first baby and after saying how much I don't want to get pregnant again for a long time and maybe only ever once again, I have baby fever! I haven't even had my baby boy and I already want another 😩 is this hormones or something? I didn't even have a good pregnancy, definitely not one I wanna relive immediately but now having another baby in a year or so sounds like a good idea but I wanted to wait Atleast six years to get our life on track with the new baby. Why do I want another baby?? How can I stop myself from wanting more?