Is my baby outgrowing her infant car seat already ?

ashley

My baby is 5 weeks, 11 pounds 3 oz & 21 inches. I know you should go by weight limits to tell when it’s time to change out the car seat but to me it looks like she’s outgrowing it already (width wise)🤦🏾‍♀️ FTM so I’m not really sure what a baby in a car seat should look like. If she’s outgrowing it what’s the next step from here?