Olivia Wilde's baby is due on May 4.
The 29-year-old actress is expecting her first child with her fiancé Jason Sudeikis and claimed she only remembers her due date by thinking of the phrase "May the force be with you" from the 'Star Wars' movie franchise.
Discussing her due date at last night's (12.01.14) Golden Globe Awards, she joked to E! News: "May the fourth be with you."
Olivia was anxious about her bladder control as she got ready for the event and poked fun at her frequent visits to the toilet.
She wrote on Twitter: "Hoping one of the GG organizers is also 6 mos preggo and in charge of placing a porta-a-potty on stage. #fingerscrossed #legscrossed (sic)"
The star - who wasn't nominated but presented an award - donned a sparkling Valentino gown for the ceremony but her favourite part of her outfit was a vintage diamond ring which was loaned by Forevermark.
She added: "FYI @forevermark if this ring mysteriously goes missing it most definitely was me (sic)"
Olivia recently admitted her small bump meant people weren't sure if she is pregnant or not.
She said: "I find that people will go to such great lengths to not mention it. People will be like, 'Hey would you like a glass of whiskey?' Or, 'You want to get on this roller coaster?' And I'm like, 'Oh well I'm actually pregnant.' And they go, 'What!?'
"I think it's because unless someone is watching you give birth they don't want to make the wrong call, because that's the worst thing in the world - when you congratulate a non-pregnant woman on her pregnancy."