Oh my gosh...I have to pick just one??? Sorry I can't I'm going to pick 3.
The morning after telling our big kids they climbed in bed with my dh and me...I kept thinking I have all 3 of my children in my bed snuggled up with me and dh. Then dh and the kids were talking to him through my belly. It was the most wonderful feeling.
Falling asleep on my tummy so I could feel him kick and play as I fell asleep.
Seeing him calmly sucking his thumb on the u/s. I have always secretly wanted a thumb sucker baby.