Alright, so I never post on here, but I'm having a car seat issue and need some advice where my google research is lacking.
My son just turned 2 on December 15th, but he is a BIG BOY. He is 40 inches tall and 40lbs. He looks like a 4 year old. He is currently in a convertable car seat that is stretched TO THE MAX, and has been for a while. I feel terrible because every time I buckle him in he points to it and goes "Owwwie Mommy! Too tight!". In doing research it seems like the next step is a high back booster seat, but I just don't think I'm comfortable with that just yet. We're also working on a budget here as I am a single parent, so I need something safe, that will last a while, and is affordable (I won't skimp on my child's safety though, so if you have a good suggestion that is on the pricey side please still feel free to throw that out there). Any ideas? Thanks in advance!
ETA: We currently have the Cosco Scenera Convertible Car Seat.