Divorce or no? i need help :( ?

We're completely different on every psychological and moral level, we're having a kid in 2 months, we always ask each other "what's the matter??" because we think the other is pissed off about something, we rarely have sex (once a week, give or take), we can't agree on how to raise our kid, there's a huge communication barrier here in which silence just lingers and we can't really talk like I want to with my wife, and I haven't even been married that long, since march 2011. I can't stand it already and I don't know what to do :( :( :( please help????