4 Signs Your Baby is Having a Growth Spurt The amount that a baby grows in utero, during the first few weeks, and over the course of the first few years is exponential and absolutely amazing. It takes a lot to grow that much, and you will probably notice when your baby is having a growth spurt.
Every baby is different, but there are certainly some patterns that we’ve come to expect as a general rule. For example, the roughly 10% drop in weight right after birth is usually recovered by the second week thanks to a growth spurt around 7-10 days. Each growth spurt will last a few days, and you may see some signs leading up to or hanging around after the height of it. KellyMom.com, another great resource for breastfeeding moms, lists the most common growth spurts for baby: