DD you are due during summer so don't go to over board as bubs will probably spend alot of time in nappy and singlet. We have just gone a few outfits....well maybe about 6 in neutral colours cause we don't know the gender and then we will purchase pink or blue afterwards. We have stocked up on singlets as they always come in handy and they are stretchy so you are fine to go with 0000 with them i would think but get a few 000 as well. Also just look at the sizing some 0000 are really small where as others are quite big!