No desire to have sex... :/

I'm only 10 weeks. And to put it lightly... Having sex is just not a priority for me right now. My bf is having some financial issues right now which I know will pass but it's been stressing me out. I'm paying for everything right now while he gets on his feet and I'm just really nervous about being pregnant and his finances and me bearing the weight right now. I just wish he would make it up and cook or clean to help me more. He does only a little bit. He of course always wants to have sex. In my heart I would love to not think about the issues at hand but the vagina is just not responding to him well. I tried to have sex with him last night and just wasn't all there. Anybody have similar issues before or can offer words of advice ?