The Hollywood actor has two children, Maya, 12, and Levon, nine, with his ex-wife Uma Thurman, who he divorced in 2004.
Hawke went on to marry his kids' nanny, Ryan Shawhughes, in 2008 and they became parents to a daughter, Clementine, later that year (08). The couple is now set to have another baby, according to Us Weekly.
A source tells the publication, "(Shawhughes is) five months along, totally showing... They don't know the gender, but... Clementine really wants a little brother!"