I had to use pampers micro with my little one for almost five weeks, he was born at 5.5lbs (these are the ones with N written on them, the same as I got at the hospital). The regular pampers and huggies were just way too big and leaked all the time.
I have just finished the last huggies nappy and won't be getting anymore as they weren't the right shape and smell was awful when only weed in (all three packs were freebies!), will be sticking to pampers for now, finally bubs is in a size 1!