I bought a little newborn and mostly 0-3. I got most of her clothes from baby shower, thrift shops, and resale shops.I figured they grow so fast I'd rather spend less money on more gently used clothes for her than spend a fortune on a few things
I did the same as u with my first and aldo she was 3,200kg at 37 week i have my husband go by close case everything was way to big , so this time for my boy i star allready to buy so new born outfits
I have a closet full of 0-12months (i hit a great sale). No matter how small he is, he will out grow them so fast! But i would get 0-3months and a 1month old plus 3-6months in case hes bigger.
I would buy a few. Not many though. My daughter was 7 pounds 8 ounces and her new born clothes were a bit big. But they grow fast she was out of them in a month.