Robin Thicke and his girlfriend April Love Geary announced Thursday that they are expecting their first child next March. The baby's due date is March 1, which coincides with what would have been the 71st birthday of Thicke's late father, actor Alan Thicke. Geary, a 22 year old model, and Thicke have been dating for more than a year. Thicke, 40, is already dad to 7-year-old Julian Fuego, his son with ex-wife Paula Patton.