Log every change right when it happens
You'll forget by the next feed. Seriously. Just open the app or mark the diaper the second you change it. Future-you at the 3 AM feeding will be grateful.
GUIDE
It changes every day for the first week — then levels off at 6–8 per day.
Day one? Just one wet diaper is fine. By day five, you're looking for at least six. Here's the full day-by-day breakdown so you know exactly what to expect.
| Day | Wet Diapers (min) | Dirty Diapers | Notes |
|---|---|---|---|
| Day 1 | 1+ | 1+ (black, tarry meconium) | Colostrum is small in volume but packed with what baby needs |
| Day 2 | 2+ | 1–2 (dark green/black) | Still meconium — this is normal and expected |
| Day 3 | 3+ | 2–3 (transitioning to green/brown) | Milk is coming in. Diapers start picking up. |
| Day 4 | 4+ | 3+ (greenish-yellow, getting seedy) | Stool color shifting means baby is getting more mature milk |
| Day 5 | 6+ | 3–4 (yellow, seedy if breastfed) | This is the turning point — 6+ wet diapers from here on |
| Day 6 | 6+ | 3–4 | Settling into a pattern. Urine should be pale or clear. |
| Day 7 | 6–8 | 3–4 | Baby should be back on track toward birth weight |
| Days 8–10 | 6–8 | 3–4 (or more) | Breastfed babies may poop after every feed — totally normal |
| Days 11–14 | 6–8 | 3+ (frequency varies) | By day 14, baby should be at or above birth weight |
If you notice any of these, contact your pediatrician right away. Newborns can dehydrate quickly.
You'll forget by the next feed. Seriously. Just open the app or mark the diaper the second you change it. Future-you at the 3 AM feeding will be grateful.
If you're not using an app, grab a Sharpie and put a dot on the front of each wet diaper before you toss it. At the end of the day, count the dots in the trash. Low-tech but it works.
Modern diapers are really absorbent, so it can be hard to tell. A wet diaper should feel noticeably heavier than a dry one. If you're unsure, pour 2–3 tablespoons of water into a clean diaper — that's roughly what one pee feels like.
After the first month, breastfed babies can go anywhere from multiple times a day to once every 7–10 days. Formula-fed babies tend to be more regular. Wet diapers are the better hydration indicator.