Amanda Seyfried has given birth to her first child

No other details about the birth have yet to be released but it comes only a few weeks after Thomas revealed he and Amanda had married in secret after getting engaged in September last year.

He said: "We eloped ... we just took off into the country with an officiant and just the two of us, and we did our thing.We had a great day. It was perfect.

"Listen, she's the person I love, admire, respect most in the world. I know that you guys are close friends, and I know that she would want you to know, so don't tell anyone."

And the blonde beauty is no doubt thrilled that her little one is here as she previously confessed she is so "ready" to meet her baby.

Asked how her pregnancy is going, Amanda shared: "It's good [but] I'm ready ... I'm ready ... I'm ready to meet the kid."

And Thomas added: "It's the best thing I've ever done in my life. She's extraordinary. She's incredible. I'm terrified, to steal a line from 'Ghostbusters,' 'I'm terrified beyond capacity for rational thought,' but I couldn't be more excited. She's already an extraordinary mom and I'm so proud of her. Her voice, my God I know, already this kid is lucky. She gets the singing. I clean up the poop."

Before announcing the news she was expecting, the 31-year-old actress admitted she felt the "pressure" to have children "every day".

She said: "Society keeps reminding us that our eggs are dying off, which I'm sick of. I'm like, 'I get it!' Technology these days man, I mean you can have babies up until you're 50 apparently. But I feel the pressure every day."