My ob was spot on with his prediction that DD would be between 8 and a half and 9 pounds and he advised me (unprompted) to buy 000 clothes which I did.

Agree that 000 Bonds singlets are quite small and a bit tricky to get on sometimes. Good in length but not width. But yep, no harm getting a size that's slightly too big anyway. So stick with the 000s and the 00s.

And remember, the shops will still be open when your baby arrives so don't stress too much about what you have and haven't got.