Alone, frustrated

I'm now 22 week pregnant. My so called husband cheated on me bcoz im pregnant that he cant do s** with me. He is always busy in playing mobile game. Some of them are thinking that what's the big deal of playing the game. He will play 24/7 . Being a pregnant. I need to do all house hold chores. He will not comecto help me. Not even single day. He touched my belly & talked with our unborn baby. We also have 2 1/2 year toddler. I need some motivation & support. So that i can alone raise my kids.