Worried

I'm at 12weeks 5days and I just miscarried my first child in May. Me and my partner have been trying and it finally happened but now everything has gone wrong in our relationship... We don't live together anymore he works a lot and he is always accusing me of being with other people..I don't have a job I got fired a week before we found out I was pregnant. Everything was fine til we went to the first doctors appointment... He has changed he barely talks to me or comes around me anymore... We lost our first child at 13weeks 5days and I'm soo scared that something is wrong... I can't talk to him because he is never around he says he needs some time but I'm left worried and alone with no one to talk to..any suggestions on what I should do?