I am only 9 weeks with my 2nd baby and am the same way. But I think it's just cause I am so nauseous I'm not really up for anything. They should be understanding that we are holding a life inside us. Lol
This happened to me with both of my pregnancies. You should talk to him and tell him that it's not that you don't love him or feel physically attracted to him, it's just that your body is going through hormonal changes and you don't feel up to having sex right now. It'll fluctuate, but no man should enjoy having sex with a crying woman. Elect to do other favours for him, sexually if need be, but my husband has been understanding so far so long as we talk about how I'm feeling and how it makes him feel.
I'm 27 weeks I'm getting that way it's getting harder to be in any postion