My son was 7 lbs and I beleive wore them for abo it a month. I bought a ton this time around because I really don't feel like doing laundry constantly. They go through 3 outfits a day.
Just get a few cheep ones just in case
And my 6 lb baby could not wear 0-3 when he was first born neither could my 8 lb baby 0-3 months were huge on them at first.
Non start off at 0-3 &3-6 bc newborns clothes don't last long
I'm tall and my bf is tall so to be honest I didn't get more than ten little clothes in that size
Depending oh how much baby weighs depends in his much you'll need. My first was 8.8 lbs and was only in nb for 2 weeks my now second was 6.13lbs and was in newborn for 1 month. I had 5 pants, 2 jackets, 8 PJs, 10 onesies, 4 under onesies 0 socks(I used 0-3 month socks)
That's the same thing I'm wondering because my husband is tall but i am awfully short. So we shall see :)