Squidpea ~ Please don't think you are doing something wrong by breastfeeding your baby! If he wasn't thriving, he would let you know! My friend has a 10month old and she is exclusively BF and her daughter only just now weighs 6.7kg.
Seven was 1.5kg above her birth weight at 4 weeks, but, in saying that, she was a small baby and they tend to try and make up for what they didn't get in utero, and, every baby is different. As long as your little one is happy and is putting on weight, who cares how much it is or isn't?
I hope all these lovely ladies have eased your worrying if only for a little while!


Chin up!!!