8 weeks and my boyfriend says he is tired of me being so sensitive..

I don't know what to do..... I don't have anyone to talk to about this as I never talk about my relationship with anyone. We planned this pregnancy. We have been together for almost 4 years after both of us going through divorce.... I've gotten him a book to teach him about what is going on, but from a man's perspective. He said he was so grateful for it, stuck it on a shelf and hasn't touched it. I tell him when I am feeling tired or nauseous. He asks why, I say because I am pregnant and he rolls his eyes. This morning, he snapped at me as I was getting ready to take the dog for a walk. I ask him what is wrong and he says nothing. I go to the garage but can't help crying quietly. He doesn't see me cry. I am now outside and he is all back to normal, sweet telling me he loves me but then says he is tired of me being so sensitive. I said again that I am pregnant and I don't know what to tell him.... So he rolls his eyes and leaves.... In general I am a more emotional person but he just isn't taking me seriously this time. I don't have crazy mad outbursts or anything, I just cry a little more easily. I'm not sure what to do. I know he is stressed about this too as it is our first but can't I catch a break?