The 37-year-old actress - who has a nine-year-old daughter Maya and a six-year-old son Levon from her marriage to Ethan Hawke - is determined not to let her age stand in the way of extending her family.
Uma, who has been dating Swiss financier Arpad Busson since last summer, said: "I'd really like more children. I went and asked the doctor and she said there's still time."
The 'Kill Bill' star also revealed she won't need to buy any more baby products if she falls pregnant again.
She added to Redbook magazine: "I still have the baby beakers from last time!"
Meanwhile, Arpad has denied rumours Uma is already pregnant, putting her recent weight gain down to her quitting smoking.
Uma's ex-husband Ethan is expecting his first child with his children's former nanny Ryan Shawhughes.
Arpad has two sons with former girlfriend, supermodel Elle Macpherson.
TAGS: Entertainment Uma Thurman