"Mean Girls" star Amanda Seyfried announced that she is pregnant.

People reported that Amanda and her fiancé, actor Thomas Sadoski, revealed her pregnancy at Givenchy press launch for their new fragrance Live Irrésistible.

The 30-year-old actress showed off her baby bump in a Givenchy black mini dress. This will be the couple's first baby. Amanda and Thomas confirmed their engagement on September 2016.

Amanda met Thomas in their off-Broadway show "The Way We Get By" in 2015. During the filming of their mutual movie "The Last Word" they started their relationship and became public last March.

Before Thomas, the actress dated Mamma Mia! co-star Dominic Cooper from 2008 for two years and "Live Free or Die Hard" actor Justin Long from 2013 to 2015.

Talking about her pregnancy, Amanda admitted an odd characteristic that she recently developed, that she can smell household electronic items.

"I swear to God I can smell the TV," the actress recently told Refinery 29. "There's this static-y, metal-y scent. Do you know what I'm talking about?"

"It smells like a cake," Amanda explained. "Only a really chic, fancy one."

Well, women are known to develop some heightened sense of smell while they are expecting a baby, but being able to smell and describe electricity is certainly weird.

Talking about her favorite smell during pregnancy, Amanda stated that she feels very comfortable when smelling something baking or sugary. She loves the Yankee candles, in butter cream frosting or angel food cake. She feels like her baby can really relate to these smells somehow, which makes her like them.

Further Amanda also said that after pregnancy she cannot stand body odor at all. She never liked any type of body odor before obviously but at least if needed she could tolerate them, but now it's a strict no-no.