Pregnant Again...

2017 I got pregnant in Nov. Had my son Aug. 3rd. (Due 8.8.18)

2018 I got pregnant in Nov. Due Aug 16.

Same father but I'm single because he hit and choked me a few days after we had sex once since I had my son. He won't help support my son. What can I do? My son needs hypoallergenic formula, not cheap. He needs diapers, wipes, clothes, I lost my job because he kept saying he'd watch him and then never show. I'm about to lose my place and car. What do I do? I need money, childcare, a nap. I live in Columbia, SC.