Keeping those kinds of variations in mind, here's what your baby may be doing during each three - month stage of the first year. (webmd.com)
My niece, who is in the «hopefully» next month stage would love these as she wants to breastfeed her child and this would be a great aid. (celebritybabytrends.com)
If you aren't using your pump until the 6 month stage then it is more important to be considering how many bottles your baby will need each day and whether or not you'd like to express milk straight into these. (breastfeeding-babies.com)