I don’t think I can be a mom.

I’m 23 years old, engaged with fiancé of 2 1//2 years. I live a pretty nice life, live in a nice home and don’t currently have to work. I’m 30 weeks pregnant and don’t think I can do it. I’m having serious regrets tonight and crying over the way I wanted my life to go. Marriage and then baby. I feel embarrassed to ever have a wedding. Tell me that I’ll love the baby instead of feeling this regret? I don’t know know why I’m all of sudden getting terrified and don’t want to do this anymore. I want my life back. And to do things differently. Please help.