I felt the same after my DD1.
It took me about 3 years to even think like I would like another one, then not long after I decided I did want another one, I just knew.
Ask me if I want # 3 and it will depend on what time of day it is lol I keep changing my mind.

You don't need to have a definite answer, you may end up wanting another one or you may not, either way it's all cool.