It is a great contraceptive

Neither myth nor truth. Breastfeeding increases the production of prolactin, a hormone which inhibits ovulation. But worth a caveat: the contraceptive effect only applies in cases where the baby breast regularly - always every two or three hours every day, including late at night. When the child starts to space out the times, the mother needs to get back on contraceptives. Today, there are products that are compatible with breastfeeding, which may be prescribed by the gynecologist.