hey prama.
hmmmm wat ever u do get just dont get too much. when my nephew was born he was in 000 for like a week. now he is just 4months old and is in a 0. i got alot of bulk clothes off ebay (really cheap) so if they dont fit i dont have to worry. i am sorry this prob hasnt helped. I am lucky because my bubs will be due a week after my nephew was born so i roughly know wat he was wearing but just not sizes.