what happened to jack and anna's baby in his and hers

In His & Hers, Jack and Anna’s baby, Charlotte Alice Harper, dies suddenly of what the show calls “crib death,” an older term for Sudden Infant Death Syndrome (SIDS), while being looked after by Anna’s mother, Alice.

What actually happened to the baby

• Jack convinces Anna to go out for a date night so they can have some time alone, and they leave baby Charlotte in the care of Anna’s mom, Alice.

• Before leaving, Anna is uneasy because Charlotte is unusually fussy and wants to stay home, but Jack reassures her the baby will be fine.

• When they return home, their driveway is full of emergency responders, and they learn Charlotte has died in her sleep at Alice’s house.

• A later letter and narration from Alice reveal the doctor’s explanation: “crib death,” i.e., SIDS, with no one formally to blame, though Alice feels deep personal guilt.

How the show frames it

• The show treats the death as sudden and unexplained: Charlotte is a seemingly healthy infant who dies during sleep, with no revealed act of abuse or deliberate harm.

• The tragedy quietly drives the whole series: after Charlotte’s death, Anna flees Dahlonega, leaves her journalism career, and her marriage to Jack fractures under grief and unspoken blame.

What happens after, by the ending

• By the finale, some time has passed; Anna and Jack are back together, she is pregnant again, and they have also taken custody of Zoe’s daughter, Megan.

• They visit Charlotte’s grave in Dahlonega with Megan, then go to see Anna’s mother, who now has a caretaker, suggesting the family is trying to move forward while still honoring Charlotte’s memory.

In other words, Charlotte’s death is not a twist murder but a devastating SIDS loss, and the emotional fallout from that night is what really shapes Jack and Anna’s story.

TL;DR: Jack and Anna’s baby, Charlotte, dies of SIDS (“crib death”) in her sleep while staying with Anna’s mom; the tragedy shatters their marriage but, by the end, they’re expecting another child, caring for Megan, and visiting Charlotte’s grave as they try to heal.

Information gathered from public forums or data available on the internet and portrayed here.