In the earliest days of life, your baby is unlikely to produce much wee, but do keep an eye out for red marks in their nappy, known as “brick dust”. This can indicate that your baby is not getting enough milk. By day two, you should expect at least two wet nappies per each 24 hours. On day three and four, expect at least three wet nappies. When your baby is five days old, you should expect far more frequent wet nappies: around six or more as your baby's intake of milk increases.
So, as a handy rule, expect the same number of wees as your baby's age in days from day one up to day six.
If your baby is not producing the expected number of wet nappies, or you are seeing orange or red marks in their nappies, do speak to your midwife for guidance.