Sofia Vergara has frozen her eggs in the hope of having a baby in the future.

The 40-year-old actress - who has son Manolo, 21, from a previous marriage to childhood sweetheart Joe Gonzalez - and her fiancé Nicholas Loeb, 38, are keen to have a family one day so have ''taken advantage of science'' as they can't rely on natural methods because of her age.

She told 'Good Morning America': ''[At] 40 years old nothing happens that naturally anymore ... we just wanted to plan ahead.

''I already froze my eggs. I wanted to take advantage of science. I took them out already. They're in the refrigerators. Hopefully, they'll be fresh by the time I use them.''

While the 'Modern Family' star - who is planning her wedding for next summer - insists it isn't an ''emergency'' for her to have another child, she wants to fulfil her fiancé's dream of parenthood.

She added: ''My boyfriend Nicky is three years younger than me and he's never had a son.

''I have my son, Manolo. So it's not an emergency for me to have another kid, but for Nicky, he's never had a baby.''

However, despite her proactive approach to conception, Sofia insisted they are trying not to get their hopes up.

She added: ''We don't want to plan too much. It's difficult, you want to be excited, and then it doesn't happen. So we'll just wait and see what happens.''