you were Insouke's wife, you were giving a birth to a baby boy after giving birth you fell asleep and the nurse took the baby and went to Inosuke

Tanjiro: sorry u couldn't hold him back

Inosuke: where is my wife being stubborn and whiny

Nurse: hello sir here is your son the nurse Gave the baby to him

Insouke: he took off his mask and took the baby carefully I'm a father he started smiling