LO is almost 5 months old and is exclusively breastfed. I'm still holding on to 12-15 lbs of pregnancy weight and it's now starting to bother me. Is the weight supposed to just fall off on its own? I want to actively attempt to do something about it but I feel like dieting/exercise and trying to lose weight isn't really necessary (or even expected) if I'm still nurishing my baby.

Thoughts?