Newborn diaper output, what to expect birth to 6 weeks
Pee:
Birthday- zero
Day 1- 1 wet diaper
Day 2- 2 minimum
Day 3- 3 minimum
Day 4 - 6 weeks- 6 plus
Maybe wet diaper- blue line may or may not turn blue but the internal diaper crystals will feel jelly-like when pinched if wet
Definitely wet diaper- about 3 Tablespoons (can try it out at home with a new diaper!)
Poop:
Birthday - zero
Day 1- 1 minimum
Day 2- 2 minimum
Day 3- 3 minimum
Day 4 - 6 weeks- 3-4 minimum
Maybe poop diaper- small spots in the diaper but not quite a quarter sized, but know poop is coming
Definitely poop diaper- quarter sized or larger
Can't forget about weight gain!
5-7% weight loss normal in first 3-4 days old
They should regain birthweight by 10-14 days
Average weight gain 5-7oz per week for the first 6 weeks
The numbers for pee and poop diapers are the minimum. If you are concerned about the number of diapers or weight gain for your baby, reach out to your pediatrician and IBCLC to talk it through with them.
Source: KellyMom