Hi all - my LO hadn't regained birthweight after 4 weeks. She then put on 6oz in a week, but the week after that has only put on 3oz. She's below 0 percentile on the graph! It is an upward trend, she is alert, pooing, peeing, all of that. And has been recommended for a referral to a paeditrician - should I top up with formula or just keep with BF as it is an upward trend. I don't know what to do. And rather superbly neither do the health professionals.