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Q&A: What clothes sizes will I need for a newborn?

What size clothes will my baby wear right after birth? And how quickly will he grow into a larger size?

Re: What size clothes will my baby wear right after birth? And how quickly will he grow into a larger size?

The Bump Expert

You're smart to think ahead -- we know tons of moms who ended up with piles of barely-worn newborn clothes, and many others who brought baby home to a wardrobe entirely stocked with too-big clothes. (Only wash and take the tags off of a few outfits before baby comes -- that way, if you get the wrong sizes, you can return or exchange.) More advice and experience from our users:

"My DD was 7 lbs. at birth, and was too small for newborn sized clothes at first. Most newborn/0-3 month clothes are for 8-12 lbs. After the first wash they shrunk down a bit but were still a little big on her. A few of her newborn clothes are becoming snug at 6 weeks. Most of her 0-3s still fit though." -Missa1128

"Jaime was 5 lbs., 15 oz. at birth and wore preemie clothing for the first month. She is nearly three months and currently still fits in 75% of her newborn clothes and wears some 0-3 month. The 3 month size is still a tiny bit too big." -expecting0207

"My DS is a fairly large baby. He was 8 lb., 15 oz. and 21.25 in. at birth, and now weighs 11 lbs, 8 oz. He did wear newborn clothing for a very short time -- about two weeks -- and is now mainly in 0-3 month sizes. However, because his legs are so long, any outfits that have full-length legs are 3-6 month size." -crk05

"My DS is 2 weeks old today and still wearing preemie sized clothing. He was born at 7 lbs., 2 oz. and was 20 in. long. There are some newborn onesies that fit, but most of them are still extremely big on him!" -ErinAGS04

"My DD was 7 lbs., 1 oz. at birth and is now 9 lbs., 9 oz. and mainly wears 0-3 month clothes." -Rossica+1

"He fit into 0-3 month clothes right away (over 8 lbs. at birth)." -SAB717

The Bump Editors

Q&A: What clothes sizes will I need for a newborn?

I would say to buy several preemie outfits even though your baby isnt a preemie, unless you expect a 10 lbs.baby!! Because, with my first I really didnt know and I thought that the NB looked so small, until he got here, he was 7lbs2oz and the NB clothes were huge on him, same w/ my second child, 7lbs2oz, but this time I bought a few preemie outfits and they were still somewhat big, she wore them for at least 3weeks, but fit so much better than NB, then w/ my 3rd baby, he was 8lbs and I knew by then to buy several preemie outfits, and well for #4 thats due in Oct. I have already been buying several preemie outfits :-)

sweet03 |

Q&A: What clothes sizes will I need for a newborn?

I would talk to your OB about this, my first child was 8 lbs 15oz and never fit newborn clothes so we had a lot of wasted money spent on unused clothes. Save your receipts also!

sissydahl617 |

Q&A: What clothes sizes will I need for a newborn?

think our baby will be newborn to 3 months for at least two months. Maybe big enough for 6 mos by Aug or Sept. he is due april 24th

shannykay9 |

Q&A: What clothes sizes will I need for a newborn?

My Son was only 7lbs 13 oz and 21 inches at birth but he wore newborn clothes just fine for like 2 weeks then he wore 0-3 months and then he moved through sizes fairly quickly now he is 3 months old and wears size 9 months. I was not prepared for that and made the mistake of getting the 6 month clothes for winter cause he would not be 6 months old till it was cold now i think he will be in 12 months clothes in a couple of weeks . . .

mommatojustin |

Q&A: What clothes sizes will I need for a newborn?

HE IS A BOY AND ACCORDING TO THE DOCTOR HE IS SMALL

filesity |

Q&A: What clothes sizes will I need for a newborn?

it also depends on the brand of clothes - Gerber tends to run on the smaller side, whereas Carter's tends to run on the larger side, even though they might say the same "size". but babies definitely tend to grow the most/fastest in those first 3 mos...

MKMN77 |

Q&A: What clothes sizes will I need for a newborn?

Different brands will run bigger or smaller, just like adult sizes. DD was a preemie and barely anything fit. Carter's ran big but the dollar store stuff fit her just fine.

Mamawillis |

Q&A: What clothes sizes will I need for a newborn?

It's also perfectly fine if clothes are too big in the first few weeks--it makes it that much easier to take them off and put them on.

briarraindancer |

Q&A: What clothes sizes will I need for a newborn?

I am sure any shop assistant will know what to exactly recommend you for a newborn. More than that, even websites have found ways of advising you and give you options on which sizes fit best. My daughter is mad about boutique baby girl clothes and I got used to ordering the right sizes on websites for her.

conquerer |