Oh RoseStarz, you are not a failure, and idiot, or ignorant. Please don't ever think of yourself this way. You are a mother to be wanting a father for your child and partner for yourself. Who in their right mind wouldn't want these things? And as soon as you lay your eyes on your son, it WILL be the happiest moment of your life.
I think you've received a lot of great advice here. You are going to need the help and support of those who love you, and they will sincerely want to help. Share this with them and allow them to be there for you.
As far as your BF goes, I'd just take him off the priority list entirely until he gets himself together. Don't let his actions ruin your special time!
I really don't have much more to add here, just wanted to send you some love and support. Congratulations on your little one!