A few things to keep in mind when evaluating weight gain

A 5-7% weight loss during the first 3-4 days after birth is normal. A 10% weight loss is sometimes considered normal, but this amount of weight loss is a sign that the breastfeeding needs to be evaluated. It’s a good idea to have a routine weight check at 5 days (baby should be gaining rather than losing weight by day 5), so that any developing problems can be caught and remedied early.