Domestic Abuse

I have been married for 7 months. When we first met he was beyond amazing, always made me feel good and would take time out of his day to make sure I felt loved. Soon I found out I was pregnant with our son and he was beyond ecstatic. 3 months into our marriage things took a turn for the worst.. He stopped going to work and would disappear for hours on end, I was still working and supporting our household. I noticed he started to become very aggressive and verbally abusive. Calling me out of my name and accusing me of cheating. While I was working trying to support our house he racked up 5,000 in debt all in my name. And money continued to disappear out of the bank account with no explanation why. Eventually the abuse got worse and he began calling into my job and saying i was sick and wouldnt be into work. I lost my job and we had no income other that the little amount i had coming back in student loans. I finally I confronted him about his odd behavior, assuming it was either due to an affair or drugs.. He denied both and eventually I found evidence of drug use. When I confronted him again he said that yes he was smoking meth and didn't plan to stop. At this point I was five months pregnant. The verbal abuse continued and I eventually was fed up and tried to leave.. I attempted to load my car while he was asleep and unfortunately he woke up. The arguement turned physical and he shoved me into the wall and told me of I didn't shut up he'd make me. He then proceeded to grab his gun and tell me he was going to kill himself. The cops showed up because the neighbors called and when they got their they took us both aside and asked what had happened. I lied, scared that he would deny any wrong doing(he is quite manipulative) and they left

Well now I am 8 months pregnant and things have only gotten worse.. I fear everyday for the day my son is born and that the abuse will carry over to him, he continually tells me he should slap me and beat me and that I really better hope the cops show up next time because I will need them for sure next time. He has even threatened to have me aressted for DV and said that they will take my green card away, even though i have never hit him... I have no money and no where to go and now I am scared to ask for help from law enforcement because the last two times they have been to our house i have denied any abuse.. I'm scared of what he will say and that they will think I'm lying and then after math from him if nothing is done. What do I do?