relationship/life advice

I literally turned 18 this month, my boyfriend of a long time was our only income as I finished school and will be doing online courses for college in the fall and then second semester physically being going to college. Our son is due sept. 3rd, and my boyfriend decided to walk out on us... I don't know what to do.. This is so hard. I live with just my mom now who I never see and I don't see my dad. I have no friends no since becoming pregnant... I just am so lost