Robin Thicke is expecting his second child, his first baby with girlfriend April Geary. Geary announced the pregnancy with an ultrasound photo on Instagram, noting that the little one is due March 1—the birth date of Thicke's late father, Alan. Thicke, 40, has a 7-year-old son with ex-wife Paula Patton. The singer started dating Geary, 22, soon after his 2014 split with Patton, People reports. According to TMZ, their baby is a girl. (More Robin Thicke stories.)