Stressed about baby not being “all mine” anymore soon

I’m 35 weeks pregnant on Monday with my first and have started struggling with having mixed feelings about him being due soon. On one hand, I’m so ready to not be pregnant anymore (my body is going through it lol) and I’m so excited to hold him and love on him, but at the same time, I just don’t feel ready to have others have their share of him next month too. The thought of even a nurse holding him is giving me anxiety. He’s been “all mine” for nearly 35 weeks now and I’m so stuck in my head imagining so many different scenarios of things going wrong involving other people, I think about these multiple times every day and get myself pretty upset. It feels like I want to lock myself away with him for a few months after he’s born and shut everyone else out of my life, but I know that also wouldn’t be good. I just feel like there are so many eyes on me in my life waiting for me to give birth and wanting to be in our space.

If you experienced this, when did it get better/how did you cope?