Quoting Let Me Tell You My Secret:" Honestly, I'm just bored with him. Ever since we had a baby our relationship has gotten incredibly ... [snip!] ... bad. Total turn off, but I don't blame him. He's too busy being a good dad. What do people do to spice things up after a baby?"
I have a 3yo and a 9 wo. Why not try having sex on the couch. Then you wont be waking baby up, adds some difference to the routine. (we all get like that) After both of our kids, sex improved but that was only cos I wasn't interested while I was pregnant. So it was more, yep now I'm back. lol. But maybe when he gets home, tell him he needs a shower etc (be honest), then when he gets out, wait for him at the bathroom door, or better still jump in the shower with him. Even if LO is laying on the floor in the lounge, LO isn't going far. And if its been a long time since sex, it wont take long anyway. lol
Maybe give that a try. He probably thinks you don't want to have sex. And someone has to take the lead, and if your sending off signals that he is gross, he probably doesn't want to make things worse by asking for sex.