Not Interested

Is this weird or is it a side-effect of wanting to having a baby but not being able to? I don't want to have sex with my husband. Not for lack of desire (well, there is some of that) but more or less I'm just not turned on by the notion of having sex with him. I know it won't produce anything so I feel like why put out the effort? I'm not interested in having sex because we won't, or can't get pregnant. Is this normal or weird or do I have some other problems going on? I'm tired of his lack of interest in going to the doctor. He isn't making it a priority in his life. I'm not holding out sex as a punishment, I'm simply not interested.

I'm especially disinterested because whenever we do finally take time he always inserts some kind of comment that maybe we'll be pregnant now. Or we argue over him going to the doctor before kindling any fires and he blames the "no baby" thing on me because we aren't having sex. "You gotta have sex to get pregnant". I know this... but I'm still thinking about his test results from earlier this year and I just can't get over it. I feel it's pointless to have sex to try and get pregnant when you can't get pregnant. It would be nice to have sex for fun but I'm too busy being upset over his unwillingness to even make an appointment with a doctor. I keep thinking about our ages and how old we are getting. How old my daughter is getting and I'm starting to feel like I'm never going to have another baby.