How did you feel?

So I’ve been with my boyfriend for a little over 3 years. We’re now expecting our first baby just that I’m still currently living with my parents. He’s supposed to move in today but I’m kinda nervous. I also have an anxiety disorder & I get panic attacks that make me gag & it’s what I’m mostly scared about him seeing him & what not. I used to always get nervous before seeing him because I started putting in my head that he was going to leave me because of my anxiety & he was going to rather another girl that didn’t have this issue & well now idk how to be all that comfortable around him. He never did anything wrong, id anything he has been the most supportive in my life about my situation. Is it normal to feel a little nervous to move in with your boyfriend at first?