One of the many perks of breastfeeding is that it delays the return of your menstrual cycle. Some women don’t resume their cycle until they have completely weaned. Other mothers, however will resume it while they are still breastfeeding. If your period has returned, you might notice a transient drop in supply before or during this time frame. Your baby might want to nurse more frequently due to your making a bit less milk. This is good because he is trying to bring the supply up again! Some babies even reject one or both breasts during this time, usually just for a day or two. Whether this is due to a “different taste” of your milk or the lower supply is unclear. In addition, you might feel a bit more emotional than usual, as well as your breasts feeling more tender. What we do know is that once your period is gone, everything goes back to status quo.