Just wanted to add that my baby wasn't that huge - 7lbs10oz or 3460grms - and she didn't fit into any of the 0000 clothes I had for her in the hospital! Hubby had to go home and get the 000 I had at home for her. Personally I wouldn't waste money on 0000 as they are in them for such a short time - get the 000 (ie the 0 to 3 months) as they don't matter if they are a wee bit big for a week or so.