Declan was 8lb 2oz and was SWIMMING in newborn sleepers. He is now 8lb 12oz and still fits Newborn perfectly. I'd say you're probably safe with just newborn sizes!!
DD was 7lb 10 oz. and lost weight in the hospital. She came home at 6lb. 15 oz and went down to 6lb. 6 oz. at one point... She was swimming in 0-3 size clothes and I had no newborn size at the time because I thought it would be a waste. I'm glad we got some as gifts.
Re: Homecoming outfit
http://balletandbabies.blogspot.com
My DS was 6 pounds 15.5 ounces and he is just over a week old but there is no way he would fit in any of the 0-3 months clothes we have for him.
Jess and Michael Married 10/2006
Layla 01.08.12
Chloe and Vivian 07.23.13
My Gang. Halloween 2013
Newborn
DD was 7lb 10 oz. and lost weight in the hospital. She came home at 6lb. 15 oz and went down to 6lb. 6 oz. at one point... She was swimming in 0-3 size clothes and I had no newborn size at the time because I thought it would be a waste. I'm glad we got some as gifts.