Husband left me for another woman

At 4 weeks pregnant my husband walked out on me with no explanation after a small arguement we had about his friend. His friend is currently going through a divorce and would come over to our house literally everyday, at weird times venting about his wife and thier problems, and would talk my husband into hanging out with him as well. He would come over late at night while we were sleep, early in the mornings before we got up, and mess up our family time on the weekends by getting my husband to spend all day with him instead. I brought the issue up to my husband and he literally got mad, called me bossy/controlling, and said he couldn't be with me anymore. He moved out, and stopped paying our rent which led to us getting evicted because I was in and out of work due to the doctor placing me on bed rest for almost a month and a half from pregnancy complications. I begged him to pay the rent because I had nowhere for me and my 1 year old daughter to go but he refused and said he didn't give a damn. I ended up homeless due to not having any family in the area we lived until I ended up breaking the news to my mom who forced me to move back home, which I have. Since then my husband has served me with divorce papers, and right before Christmas I found out his real reason for doing what he did with me was because he's in love with another woman. He's moved in with her, and their living happily ever after. I got a hold of his bank statements and he's been treating her to fancy restaurants, buying her things, paying her rent, and they've even booked a cruise!!! He's never done any of that for me. So I reached out to the girl, after finding out who she was, to inform her that we were still married. And she basically told me she didn't care about our marriage, or about us expecting a baby, all she cared about was him coming home to her and fucking her every night. I also still have his password to FB so I went through there messages on FB messanger and saw that he was trying to have a baby with her! He was telling her how he hoped she was carrying his child after all of the "nut" he placed inside of her the night before. And I'm furious! I'm heart broken, sick, humiliated, and my hair has started falling out from stress. And to make matters worse his family (mom,dad,sister,and brother) knew about the girl and had even welcomed her into thier family but lied to me when I asked if they had any idea of this affair. Since then they have been ignoring me, and giving me the cold shoulder like I'm a piece of shit. I called my husband on his job and talked to him for he first time in a month to inform him that I had found out about his little gf, and told him how wrong he was for doing this to me and he told me that if I called his job again he would go to the police station have me reported for harassment!! I just can't believe the man that I loved and thought was in love with me could be this mean and not care about our child that I'm carrying. We were perfect and I never saw this coming. I could understand if we were major having problems or arguing all the time and I figured this would soon come but we didn't have problems and there were no signs of him being unhappy either. I'm just exhausted with everything, and have even thought about suicide. We actually prayed for the baby I'm carrying, and were seeing specialists and all and now he doesn't want it or me which is making me regret ttc and hate the fact that this child is now unwanted and will be birthed in hate. Advice? And Please no negativity towards me..I'm already hurt as is..