A 40-year-old mom allegedly killed her 7-year-old son in their Bedford-Stuyvesant home late last night, police sources said.

Tenika Revell, allegedly called 911 at about 11 p.m and said, “I’ve just killed my son and I’ve taken pills,” before hanging up.

Officers responded to the family’s home on Garvey Place in the Marcus Garvey Houses and found the boy, Bernard Revell, dead with obvious head trauma. It is not clear exactly how the boy was killed.

Tenika Revell was taken to Woodhull Hospital for treatment of her pill overdose. She was charged late this evening with one count each of second-degree murder, manslaughter, and endangering the welfare of a child, police said.