I was single with four kids before I met my husband. I have been through so much heartache so I understand what you're going through. It will hurt for awhile but I promise it gets easier with time. Keep yourself busy and focus on your baby. Find support from friends and loved ones. You were ok before him and you will be again.
I'm sorry sweetie. I went through this too. It's the hardest heartbreak ever and I know what you mean when you say it feels like a "dream." You're a beautiful girl. Be strong for your baby. I can promise you that every week gets a little better. I've been single for 3 months now and I'm finally coming to peace with it. Focus on you and baby, pray, and lean hard on your family for support.