Im 22 weeks pregnant and my husband wants a divorce?

My husband decided he doesnt love or want to be with me anymore. I dont understand why. I know we have had our share of problems but i dont understand this at all. First off my husband is a solidar in the army, stationed in germany and we have been married for a year and a half. This pregnancy was a bit unexpected but he was hapy at first. Im 22 weeks with my frist baby boy. About a month an a half ago he left to go train for a month, everything was fine, he told me daily how much in love with me and he just bought me a $929 wedding ring cause i deserved it. Then he came home and for a couple of days things were fine then he went out drinking with some single solidars came creeping into bed and i was upset so we fought the next day and then he said he was not in love with me anymore, did not want to be with me, was not willing to work it out, and if i didnt want to be a single mom i should put the baby up for adoption. Meanwhile his parents came to stay with us for 20 days and they had no clue about this until he filled them in, told them he did not love me and never did. They were to go on a vaction to another part of Germany for 8 days. He told me he wanted me gone by the time he got back. Like a fool i only wanted to make him happy, so he got me a space-a flight and i flew home only to find out i couldnt go anywhere so i had to fly right back over here. He had to come get me and he was furious, he droped me off at out house and i was alone again, i started bleeding and haveing contractions so i had to go to the ER but he wouldnt take me so i had to walk to the military police station cause i didnt know there number Now im stuck in this house by myself no family few friends pregnant and i have no clue were he is. I think he has found someone else. I havent spoke to him at all. Him and his parents came home today and left not saying two words to me. What happened? What do i do? Do i give him space? Will he snap out of it?