Final answer:
Kelly may be experiencing postpartum depression, characterized by feelings of sadness and inadequacy after childbirth. Seeking support from healthcare professionals is important.
Step-by-step explanation:
Kelly may be experiencing postpartum depression, which is a form of depression that occurs after childbirth. It is characterized by feelings of sadness, worthlessness, and inadequacy. It is important for Kelly to seek support from healthcare professionals, such as a doctor or therapist, who can provide appropriate treatment.