Those first few days postpartum are definitely something to get used to. (tulsafamilydoulas.com)
During those first few days postpartum, your breasts may continue to feel sore and around day two or three postpartum you may start to feel «engorged». (lactationlink.com)
During pregnancy and the first few days postpartum, milk supply is hormonally driven — this is called the endocrine control system. (kellymom.com)