Please read your car seat. There should be a weight limit and maybe even the appropriate age.
Generally, infant seats only go up to 22 pounds. There are convertabile car seats that cover 5-40 punds starting rear facing and then forward facing at one year old and over 20 pounds. Last, there are toddler car seats that usually cover 20-80 pounds. The weight is more important than age, except to turn the car seat forward the child must be one year old and the appropriate weight.
at 1:08 PM on Oct. 9, 2008