The Duchess of Cambridge, Kate Middleton, looks like she’s about to pop. Kensington Palace has announced her last royal engagement with husband Prince William before the baby arrives will take place on March 27. She is now opening up about her due date during a visit to a children’s center on Wednesday.

Middleton, who gave birth to her first child, Prince George, in July 2013, told a fellow volunteer at the Woolwich, London center she’s due mid to late April.

Christine Osborne told The Telegraph the second-time mom-to-be told her, “I’m due mid-April, to the end of April. Not long to go now."

Osborne said, "I couldn’t resist asking. It’s very exciting – and it was wonderful to have her here."

The Duke and Duchess announced they were expecting a second child in Sept. 2014. In both pregnancies she suffered from acute morning sickness, or Hyperemesis Gravidarum.

image courtesy of INFphoto.com