Liam's two month appt

Today was Liam's two month check up. He weighed in at a whopping 14.7 lbs and was 24 1/2 inches long. They said he looked great and told us to give him an ounce of prune juice a day to help with his bowels. I was also told that the reason his is not doing so hot between feedings is he is not being fed enough!!! Yes....we are giving him 5 oz every 3 hours but they said based on his weight he should be getting 6-7 oz. What does this mean you ask???? It means we now need to get all new 9 oz bottles to fit this amount as well as HOPEFULLY in a few days him sleeping longer at night :)