Michel Odent has written some interesting things on this topic, the most recent one I read being his book "the functions of the orgasm". He theorises that sexual pleasure during pregnancy, birth and breastfeeding is fairly common but not spoken about because of the social stigma of connection sexual pleasure with childbearing. I say enjoy it
see thats why I was hessitant to post it... because of the whole ...i'm getting off on my baby sort of thing smakes me feel unsure. I obviously want to embrace it though, like others have said, better than the alternative but it's still making me uneasy... like I have to make the conscious decision to go with it rather than avoid/ignore/fight it (like it is currently still an effort as such to give into it and enjoy it, rather than than feel ashamed)