Breasts start producing milk during pregnancy, often as early as the second trimester, between weeks 16 and 22. However, the milk produced during this time is called colostrum, a thick, yellowish liquid packed with antibodies and nutrients crucial for the newborn's health.
While colostrum production begins around the middle of pregnancy, mature breast milk typically comes in after delivery, usually within 2-3 days. This timing can vary depending on individual factors like hormonal changes and breastfeeding practices.
