Am I wrong?

Ok so I am 26 weeks pregnant with our first baby. I feel like I am going through this pregnancy all by myself. My boyfriend has gotten into the habit of coming home late and drinking almost everyday we argue about this everyday because at the time he gets home he just showers and goes to bed barely acknowledging me whatsoever. I cry my eyes out to him day after day asking him why can't he just come home and spend time with me instead of being out with his friends but he doesn't think he is doing something wrong and yesterday he told me well I want to get this out of my system before the baby is here but what he fails to realize is that I emotionally need him now. He is also becoming stingy with his money towards me and when I approach him that the baby will be here soon and he has nothing and we aren't prepared his response remains the same oh well he will have what he needs before he gets here. He makes me feel so alone! Am I wrong for being so upset and angry towards him or should I seriously let him get through this stage?