Going to be alone in the delivery room

My heart is totally broken... I will be delivering my son, all alone. My mom has an island vacation scheduled, my sister is a teacher and will be back in the first week of work(she lives 2 hrs away out of state), and the father of my child will be in rehab(please no judgment, he relapsed and is doing what is needed). But now I have no one to be there with me. A lot of my emotions are pregnancy hormones, but damn if I don't feel completely alone, unimportant, and just plain unloved. I know my sisters work isn't anyones fault, but my mom seriously didn't consider the birth of her grandson while making that vacation, and my douche canoe of a baby's father seriously couldn't have picked a worse time to get into his own feels about life and relapse. Im glad my mom has her opportunities to do things, and I am glad he has enough sense to get help. But damn if I don't feel betrayed right now.😞