Olivia Wilde is one pregnant woman not to mess with.

The actress, who is pregnant with her second child with fiance Jason Sudeikis, tweeted her disgust with a few New York City subway riders who refused to give her their seat.

"[No big deal], able-bodied [subway] riders who won't give your seat to a GIANT preggo," she tweeted Wednesday. "I'll just stand riiiiight next to your head and pray I go into labor."

The 32-year-old actress lives in Brooklyn with Sudeikis and their 2-year-old son Otis.

The MTA has been pushing passengers to be more courteous to each other through a series of ads on trains. Clearly these passengers did not take notice.