I have the graco 4 ever carseat and you can put them in there since they are newborn... So it depends on what carseat you have. My baby is 4 months but her feet are almost sticking out lol!!!! So i will be changing her before she is 1

thanks @lilanne1927 my chuncky boy will definitely hit that first

You can switch seats whenever you feel comfortable. Ideally you want to switch from the infant seat either height or weight is reached. I'm thinking about getting my youngest a new seat around tax time. About that time he should hit either one first. Most infant seats don't last tell age one cause chunky babies what else lol. Babies normally hit the weight first.

O OK so my baby is way to small still I just want to be prepared for when that day comes @kreeblim and @lacywriter91. I had to move the straps up one yesterday, I almost cried. he's getting so big so fast and I just want him to stay my tiny baby forever

Your car seat should have a weight and height requirement on it. My daughter is so tall I may need a different car seat soon.

no i switched him cause he was getting way to big for his newborn carseat really i think u should do it when they out grow them they have the bigger ones rear facing now for the younger babies

see I usually do the same @lacywriter91 but I knew people that waited til almost two years old. I was just making sure I wasn't doing the wrong thing

i did with my son at 1 year