The Mean Girls star is expecting a child with her fiancé, Thomas Sadoski.
Amanda Seyfried confirmed she is pregnant, after being spotted sporting a baby bump this week.
According to PEOPLE, Amanda, 30, confirmed the happy news while attending a press launch for the new Givenchy Live Irresistible fragrance.
The actress recently announced her engagement to actor, Thomas Sadoski, 40.
The couple has been dating since March, striking up a romance while filming their upcoming film, The Last Word. They became engaged in September.
This will be Amanda and Thomas' first child.