Tracey Gold is about to experience growing pains of another kind.
The erstwhile Seaver gave birth to son Dylan Christopher Tuesday night, her fourth child with hubby Roby Marshall.
The former Growing Pains star welcomed the baby boy at Tarzana Hospital at 7:20 p.m. The tot tipped the scaled at 8 pounds, 4 ounces, and measured 21 inches.
"Mom and baby are doing great," proud grandpa—and Gold's agent—Harry Gold told In Touch Weekly, which first reported the arrival.
The 38-year-old actress confirmed she was expecting back in October. Dylan joins a trio of brothers in the Gold-Marshall brood: 11-year-old Sage, 9-year-old Bailey and 3-year-old Aiden Michael.
Gold and Marshall, 42, met back in 1990, when he was consulting on the TV movie Blind Faith, which starred Joanna Kerns, Gold's TV mom. The duo tied the knot in 1994.
Gold currently hosts the TLC reality series The Secret Life of a Soccer Mom.