Calendar: Week of March 31

Here's a look at the week ahead on our "Sunday Morning" Calendar:

Monday is the enrollment deadline for health insurance under the Affordable Care Act. People who've had technical problems in signing up can get an extension.

• healthcare.gov
• Complete CBSNews.com coverage: Health care reform

Tuesday is April Fools' Day . . . a day to be wary of pranksters and tricksters. No fooling!

• 15 best April Fools' Day hoaxes

On Wednesday, names of some of the winners of broadcasting's George Foster Peabody Awards will be announced on "CBS This Morning."

• Peabody Awards
• Follow the Peabody Awards on Twitter and Facebook

On Thursday, Queen Elizabeth is scheduled to have an informal meeting with Pope Francis at the Vatican.

• Her Majesty the Queen at royal.gov.uk
• Follow the British Monarchy on Twitter
• Pope Francis at Vatican.va
• Follow Pope Francis on Twitter

On Friday, Doris Day celebrates her 90th birthday one day late, with a fundraiser in support of her animal foundation.

• Doris Day Animal Foundation
• Gallery: Doris Day

And Saturday is the day for the Final Four: NCAA basketball's National Semi-Finals in Arlington, Texas.

• Complete CBSSports.com coverage: NCAA college basketball tournament