Our infant car seat has expired and we don’t want to get a new one because this is our last baby. We are looking into a graco 4 ever because it doesn’t expire for 10 years and will get baby all the way through to a booster seat. What car seats did you get for your last baby if you had to get a new one? We are wanting to use the infant seat for stroller use still as it will go into both our regular stroller and our double but just not the car. Still safe to use?