Firstly congrats on your pg!! Hope its healty and happy!!

I'm not a single mom, but I did go through a break-up with a bf of almost 4 years, he was the guy I was going to marry. I found the best way to work though a break-up is NOT to get your mind off things. I'll try to explain:
Take one day, a week, a month and THINK. Think loooong and hard about everything -positive's, negative's, laughs, cries, being happy, getting hurt, dreams together. As you are doing this, write it down. Then go through it from your current situation. Work through your emotions, build courage to control them and burn everything you have written. Get your break-up out of your system and then focus your energy on your child. You said yourself, you are not reconciling, so cry, scream, punch something (I recomend something soft, like a pillow - not a wall ) get your emotions out.

The best of luck too you!! You are going to be the best mommy for your baby!!! :hugs: