Ellie, I feel a bit odd having sex with a bump.... it just feels like there's someone else there! And my fave time of the day is lying in bed, just before I go to sleep, feeling her thump around - which hardly seems to be the right precursor to nookie!!!
My DH is still keen, but he has said it is very odd looking at me now, as I look so different, and he has to switch bits of his brain on and off, depending on whether he is focussing on me, his gorgeous sexy wife or me, about-to-be mum to his daughter.
I think it must be very difficult for him to get his head straight!
Sorry, just rambling now, guess what I'm trying to say is, don't worry that your DP is going off you, of course he's not. It's just that things are changing a little!!