I was very broody like you, then not, then broody, then not etc etc.
Now, after dd2 going through a "lets stay up all evening and, hell, why not through the night as well?" phase and the strain it has put on us, no way will I be having another one.
Like you I LOVE little newborns and can't imagine NOT being pregant again....but I overheard dh on the phone to his friend the other day, saying, and I quote "I would rather nail my knob to the table" when asked if he wanted another one.
So unless you both are keen, I wouldn't do it.
xx