Hi<br> If the weighing scale is different there will difference. Use the same same scale to weigh every time

<span style="color:#3B5998;"><b><a href="http://app.babychakra.com/article/3779">Baby Weight Gain: What Helps And How</a></b></span>

<span style="color:#3B5998;"><b><a href="http://app.babychakra.com/article/2797">Helping A Toddler Gain Weight</a></b></span>

It's ok as long as the baby is active. Read this article. <span style="color:#3B5998;"><b><a href="http://app.babychakra.com/article/2623">Understanding Baby Weight Gain</a></b></span>