Hi mama! At 7 months, 7 kg is actually on the lighter side, most babies around that age are typically between 7.5-8.5 kg, but every baby grows differently talaga, especially kung exclusively breastfed or may smaller build sa family ninyo. I'd really suggest checking with your pedia just to be sure she's gaining okay at her check-up, kasi they'll look at her growth curve and overall development, not just the number on the scale, a few of us mums have worried the same way, pero sometimes it's just our babies' natural size!