Is My Baby Getting Enough Breastmilk?

Weight gain

Weight gain is a factor in your baby’s health and can give valuable information about how much milk they are receiving. It is normal for your baby to lose a little weight in the initial days after birth. They can lose up to 10% of their birth weight while your breasts are transitioning from making colostrum to making milk. Your baby should return to their birth weight by approximately two weeks of age. Most babies will then steadily gain weight at approximately 150-250g per week. Weight gain can be impacted by many factors and the trajectory of your baby’s weight and measurements as plotted on a growth chart is important and should be assessed by whomever is weighing your baby.

Weight gain is a factor in your baby’s health and can give valuable information about how much milk they are receiving.

If you have any concerns about your baby’s output, behaviour or weight gain, please speak with your health care provider. Lactation consultants are specifically trained to help assess your baby’s wellbeing and assist you to increase your milk supply if needed.


Megan Colville is a registered midwife, registered nurse, international board-certified lactation consultant (IBCLC) and parenthood coach. For over fifteen years, her mission has been to empower women and families on their journey into parenthood. She is passionate about supporting families and believes the support a woman receives through her pregnancy and the early weeks with her baby is essential to her journey and foundation as a mother. Her goal is to help families thrive during their transition to parenthood, whether it is with their first or fifth baby.

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