You'll feel like it again one day. It has taken me 10 months, but I finally feel like my old self again. I never thought I'd see the day - I have been so absorbed in my 'maternal' body, rather than my 'sexual' one, but I think I've finally reached some sort of balance. It will happen. Give yourself time.
Also, like Marydean said, breastfeeding has made a difference to me in that department. Again, (along with the hormonal aspect) I was forced to shift the sexual aspect of my breasts to the maternal one, then back again! Honestly, its no wonder we get so tired as mothers - not only are there so many physical changes to get used to, but we have a lot of psychological demands on us. Now that DD is feeding less, I'm feeling less like my boobs are hers and more like they're mine (and DH's) again.