We don't do it much either. I'm also not that keen to be touched. It's not just a sexual thing, I actually get annoyed when the cat sits on me too!
We have acknowledged we are both tired. My DH keeps making weird faces in recalling the vision of me birthing our DD. I think in hindsight it would have been better to blindfold him....
Anyway, keep talking to your DH about how your feeling. It's little steps and no pressure by either of you, around what your needs are and how to meet them.
I think the pressure of scheduling DTD doesn't work and while it's harder to be spontaneous sometimes the "we really want to but can't" adds to the spark if it's flicking low.