My second eldest was 9lb 12, nearly 60cm long (when remeasured he was actually about 58 so still massive) and HC of 40cm, aside from one knitted outfit from Mothercare; no newborn size stuff fitted him at all, he went straight into 0-3 and completely outgrew anything in that size by 3 weeks. Second youngest was also similar, 9lb 6, 57cm long and HC of 38cm, again straight into 0-3 and completely outgrown that size by 3 weeks. What you'll often find though is big babies don't stay big, in many cases they are average or even below by 6 months xx