Feeling a little unconnected.

I’ve had my baby boy for almost 4 months now and I love him very very much. But somehow I feel like I’m not connected to my son. I don’t really know how to explain it but is it normal to be feeling like this? Is it because I’m still new in the mom world and I’m still confused and clueless about having a little one? Is it because I’m working and unable to spend more time with my baby that I feel unconnected?