After colostrums, letdown may start within 3 to 5 days after the birth of a baby. However, some health conditions, such as stress, hypertension, and anxiety, may delay the letdown process. For instance, if a mother is experiencing any health condition, they may experience a late letdown reflex, generally after 7–14 days. It may delay up to 7–14 days if a mother is having any stressful or medical condition.