Single mothers in school

I'm expecting my first baby in June. And it looks as if I'll be doing it on my own (long story). Anyways, I'm thinking that I need to finish my college degree in order to be able to support myself and the baby. How many of you have gone back to school after a baby? And how difficult was it? I'll be doing online classes primarily so that I can stay at home with baby as much as possible; but I will still be working also.