Postpartum bump..

Jane • Currently pregnant with my first baby. 🌸👶🏼🎀 She's a girl!! Due October 12th 🏩
My baby is now 5 days old. 
I had a csection on 10/19/15 and I'm 5 days postpartum and still have a little bump. 
It's gone down quite a bit but not how much I expected. I thought I'd be way smaller already. 
I'm exclusively breast feeding as well so I figured that would speed things up. 
Is it normal to still have a little bump at 6 days post? Is it bc of the csection?