I'm sure this has been done already but I need some advice please...my baby is nearly four months old and I am breastfeeding. He was born just below the 75th centile and today when he was weighed has continued to gain weight but not quickly enough. He is now just above the 25th. I feed him on demand and always offer both sides although he usually only feeds on one side. He tends to feed every 2-3 hours in the day and a couple of times overnight. What can I do to increase his weight gain without introducing formula? I'm not intending to start weaning until he is 6 months. Any ideas would be gratefully received...