Baby Blues

Baby blues if common in moms after childbirth. It’s caused by the sudden change in hormones after delivery, combined with stress, isolation, sleep deprivation, and fatigue. You might feel more tearful, overwhelmed, and emotionally fragile. This will start within the first couple of days after delivery, peak around one week, and taper off by the end of the second week postpartum.

Baby blues and postpartum depression are different, even though the symptoms are similar, postpartum depression is experienced for a longer period of time and more severe, some usually require medication and counseling.

Source: https://www.helpguide.org/articles/depression/postpartum-depression-and-the-baby-blues.htm