Can't get husband in bed

Ok posting out of frustration. We got preg w our first daughter really quickly and unexpectedly. I put an iud on scared that we would get preg again so quickly. Fast forward 2 years. I took it off in January. Daughter turned 2 in feb. Still can't get pregnant. But here's the problem. I don't think anything is wrong. Every month I have to fight w my husband to get him into bed. He knows I took out my iud. I didn't do it behind his back. He agreed to it. And every month it's the same thing. He's always tired and second guessing having another. I'm really getting annoyed by him. He's not cheating on me. We're together all the time and he calls me all day from work. He just has no interest in sex. We're going on 7 months ttc and I know it's bc he's not trying. I can only get him to do the bd one time in my fertile window if I'm lucky. And I know that's not enough. Any suggestions? This is really mean to say but I'm not staying with one child. I'm not an only child and don't want my daughter to be one. He always said he wanted 2 or 3!!!! And I can't even get him to have one more. Something is wrong here. Any tips