My first born

Is 3 weeks old tomorrow and I am soaking in every second, enjoying every quiet, cuddly moment and spending most of my time just staring at her, but I can't help thinking about having another. I want another baby so bad it's a little crazy. I still have a newborn and we aren't going to start trying until after she's a year old. I said I'd only have two but the moment I got her home I told my husband I knew I wanted more than just two.

Now I'm scared I will never feel "done" having kids.

Anyone else expirenced this?