Blair couldn’t keep her big secret hidden for long! The pregnant Princess-to-be shared the news with THREE Upper East Siders. But the question remains unanswered: WHO is her baby daddy?

After finding out that Blair (Leighton Meester) and Dorota were pregnant on last week’s episode of Gossip Girl, we were sure Blair would try to hide it as long as possible! But to our surprise, she quickly spilled the news to a lucky few.

Blair accompanied Dorota to her doctor appointment at the beginning of the Oct. 3 episode, but what was supposed to be an appointment for Dorota turned into Blair asking the doctor questions for herself! Dorota caught on to Blair’s act quickly, making her the first the find out Blair’s baby news! But Blair’s next confidants came about a little trickier.

Prince Louis’ (Hugo Becker) sister Beatrice (Roxane Mesquida) paid a visit to him and Blair, and when Beatrice noticed how Blair couldn’t stomach any food and was constantly running to the bathroom due to morning sickness, she immediately assumed Blair was bulimic! It wasn’t until she overheard Blair tell Dan (Penn Badgley) she was pregnant in the bathroom that she found out the truth!

This leaves three people in on Blair’s big secret: Dorota, Dan and Beatrice — a dangerous mix! But who will be the first to tell the potential daddies, Chuck (Ed Westwick) and Prince Louis?

More ‘OMG’ Moments:

1. Beatrice is out to get Blair!

Blair’s evil soon-to-be sister-in-law is definitely going to be problematic this season. Beatrice was pretending to want to get to know Blair and that she wants the best for her brother, but we quickly found out Beatrice is trying to become the Queen of Monaco! Will she be the first to share Blair’s secret with Louis?

2. Serena & Ivy are moving back to the UES!

After Ivy aka Charlie (Kaylee Defer) ran into Serena (Blake Lively) they rekindled their fake family ties and Serena asked Charlie to live with her. This is obviously a problem for Charlie, considering she’s not actually Charlie, Serena’s cousin. But she went along with it and ended up accepting Serena’s offer to take more of the trust fund money AND agreed to move back the City. She’s so devious!

3. Nate Reunites with Diana Payne!

Nate’s one night stand with cougar Diana Payne (Elizabeth Hurley) turned into a bigger commitment now that she’s permanently residing in the UES. And this time around she will have more power over Nate (Chace Crawford) than just sex. She offered him a job! Looks like a recipe for disaster.

4. Chuck’s obsession with danger is revealed!

Apparently Chuck Bass isn’t trying to kill himself by paying people to beat him up — he’s just trying to feel emotions again. The troubled soul confessed to Dan that he can’t feel anything — physical or emotional — which is why he’s been purposely getting in fights and living life on the edge. While he denied his odd behavior being a result of Blair’s royal engagement, I truly find that hard to believe.

Next week, it looks like Louis will find out about Blair’s pregnancy! Will we find out who the father is, too? What do you think, Hollywoodlifers? Were you as shocked as I was that Blair already told so many people her secret? Sound off in the comments section below!