Not as attracted to my fiance postpartum?

I had a baby two months ago. I'm all healed up and on birth control, but I am just not as sexually attracted to my fiance as I used to be. We fool around a little bit, but when it comes to having sex, I just can't get into the mood for it. I don't feel as gross as I did after I had my daughter. I'm pretty comfortable with my body now. He's really patient with me, but I feel bad that I'm just not into it anymore. Any suggestions for how I can find that attraction again?