what to do?

ladies i need some advice ive been in this relationship for 4 yrs i have a daughter who is now 6 and pregnant with 2 baby with 5 weeks.....the issue is that the guy im with has a really manly attitude that what he says go and when he says it...on christmas i was bymyself because he decide to leave to washington to visit his family and this new year he decided to get drunk with his friends and just leave me out of everything...i dont have no family support been doing it on my own and now i feel like i just hit rock bottom....i need some advice ladies help please!!!