Uma Yearns (PageSix.com)

ETHAN Hawke's knocked-up nanny gal pal, Ryan Shawhughes, isn't the only one with babies on the brain. Hawke's ex-wife, Uma Thurman, 37, who has two kids, wants more. "I'd like more children. I asked the doctor, she said there's still time," Thurman tells the March issue of Redbook. "I still have the sippy cups."