My best friend is pregnant and due early September.

I just got married and I'm moving on August 20 to Camp Pendleton to be with my husband, we found out a few weeks ago we're pregnant.

She's upset that I'm not going to be there when she gives birth. Like legitimately annoyed and angry with me because "I won't be there for her child." The thing is, she has her parents and fiancé and her whole family there. I'm honored she wants me there but I need to get settled in my new home since I'll only be there for a few days before I would have to come back to wait for her baby. I can wait in my new home while I unpack just like I can wait in the waiting room (she doesn't want me in the room so I really don't understand why she's so upset I won't be there- especially since I don't want anyone but my husband at the hospital with me). She's really upset and I tried explaining that I kinda need to adult right now so I can get my life on track with my new marriage, but I'll still support her and her baby and I'll meet her baby in a few weeks after the birth. I don't know what to do or say because anything I do makes me the bad guy for basically just doing what I need to do. Advice?