6 month old losing weight

MetholicBlog

So at our 4 month appointment our LO weighed 13lbs13oz. At home on our baby scale she now weighs 13lbs10oz. I called the pedi and the nurse said it was fine, but no weight gain in two months and a little loss? Anyone else experience this? She is wiggling around more and into her jumper more. Should I try to add in a feeding even if she isn't showing hungry signs? I don't want to force it though. She is happy and everything else is good.