Small 5 month old baby

Jessica

My daughter will be 5 months in Tuesday, she weighs 13lbs 12oz, 24 inches long. The dr said she is a little small and said her growth has slowed down a bit, but wasn't too concerned because she was growing proportionally. I am a bit concerned though. She has started solids and eats at least once everyday and will have 7oz of breastmilk and formula every 4 hours. So she gets 28 oz during the day and will breast feed at night. We are thinking of bumping her up to 8 oz of formula and breastmilk and doing 2 solids a day. Does this seem right? Does this make sense? I'm a first time mom and don't really know what I'm doing 🤣 thanks in advance for the help! ❤😁