husband being emotionless

we have been together for almost 2 years now. I am a little over 9 weeks pregnant and he has been saying some really hurtful things to me... he tells me he doesn't want to talk bc I upset him and he just no longer cares. he says his has turned all his emotions off and just doesn't give a crap on what I do....I have been Considering divorce.. but here is the bad part...I have 2 kids..from previous relationships..they love him..and I will not get another do I handle this..should be just separate and live anyone else going through this...i dont understand what I have done to deserve such rudeness....sorry for the long post