The newborn baby found outside a Queens home Sunday was allegedly thrown out a bathroom window by his mother, who’d just given birth and now faces charges, police said.

The baby boy, who also suffered hypothermia, remained in critical but stable condition Monday, cops said.

He was discovered with his umbilical cord still attached outside a home on 126th Street in South Ozone Park around 10:15 a.m. Sunday and taken to Cohen Children’s Medical Center.

Investigators determined that the infant’s 23-year-old mother, Sabita Dookram, gave birth in the bathtub, then allegedly tossed the baby out the bathroom window, officials said.

She underwent a psychological evaluation at a hospital, police sources said.

She was hit with seven criminal charges, police said. Those charges include attempted murder, attempted manslaughter, assault, reckless endangerment, tampering with physical evidence, abandonment of a child and acting in a manner to injure a child, police said.

A next-door neighbor said Monday that she knows the baby’s mother but “didn’t notice she was pregnant.”

She added that she is unaware of a husband in the picture.

Additional reporting by Larry Celona and Amanda Woods