AceShowbiz -

Olivia Wilde is pregnant with what will be her and fiance Jason Sudeikis' first child. This was confirmed by representatives of the very much in love couple, who a source said were "incredibly happy" and "excited to welcome a new member into their family."

The mom-to-be had previously expressed her excitement to start a family with her fiance, whom she described as "so good with kids." The lovely actress said she's "open-minded" about how many children she would be having with Sudeikis in the future but stated "three is like a little party."

The 38-year-old comedian and the 29-year-old former "House M.D." star got engaged in January. They began dating in November 2011, six months after they met on the season finale of Sudeikis' late-night live TV sketch comedy and variety show, "Saturday Night Live".

Back in July, Sudeikis pegged the date of his big wedding day to Wilde at a still indefinite "maybe next spring," but now the pregnancy might get into play in deciding the final wedding date. As to where it would take place, Sudeikis said the "perfect venue" would be decided once they drafted their guest list, since they would like to consider where their friends, who were also in the business of entertainment, would all be at the time of the wedding.