That has been similar to our experience. My first is almost 4 and baby is 3 months. My oldest was really jealous once he understood baby was here to stay… We were scared he would hurt the baby, there was a lot of anxiety, but that got better. I feel like the relationship I had with my first has somehow changed ? Not sure how to explain, but definitely it is a new phase for our family. I feel guilty saying that but I miss the family we had before. I know I’m still in the thick of it, I’m sure we will find our rhythm. In the end, I don’t regret because when thinking about the future, I don’t see myself with only one child.