Losing weight while breastfeeding

I’m nearly 11 weeks postpartum and haven’t lost any weight since about 2 weeks after giving birth. I’m still over a stone heavier than pre pregnancy but I started off at about 2 stone heavier than I wanted to be in the first place. I feel like a whale and hate seeing any pictures of myself... can I safely lose weight while breastfeeding and not affect my supply? I should be enjoying this time and I want to look back in pictures of me with my son but honestly I just feel like a land whale and I hate it