Being a single mom isn't bad at all.
Let this be a lesson of what is to come. So make sensible decisions.
I say this because I feared being a single mom so I took my sons dad back and he treated me awful...horrendous actually. He never wanted our baby and even though he came back he clearly still didn't want our baby and made my life hell.
As I wanted a family for my child I put up with him until I couldn't no more. I don't regret him as I have my wonderful boy, but if I could do it again I would not have taken him back when he left because he didn't want the baby and I would never ever of given my child his surname.
My DS is now 5 and a half and his dad hadn't bothered in over 4 years now.
I felt like I was letting my child down but I now know I did exactly what I needed to do.
Think about you and your baby and focus on the both of you. Not him. I wish I'd of done that as he ruined my pregnancy.
Enjoy your pregnancy. If he doesn't want to be a part of it, it is his loss.
Trust me you can do this. I am a very proud lone parent. Yes it's hard but I have so much pride in my little boy and myself for the life we share.
Good luck