Did they make the changes to the lengths of the life stages in this patch? If so, how long do they all last now? And how long is the infant stage (on normal lifespan)?
My sim who was about to become an elder had her birthday pushed back a few days, but she also maxed the fitness skill right before I checked the calendar so that could have contributed. My teen who was about to become a YA didn't have any change to his birthday. I wasn't keeping close tabs on anyone else.