Model/fashion designer Lauren Bush Lauren is a first-time mother after giving birth to a baby boy.

The granddaughter of former U.S. President George H.W. Bush posted a snap of her newborn son James on her Instagram.com account on Sunday morning (22Nov15).

She wrote, "Welcome to the world sweet baby James, born yesterday morning on November 21st at 8:19am. @davidlauren and I are beyond thrilled and in love!"

Lauren and her husband David Lauren - son of fashion designer Ralph Lauren - announced the pregnancy in July (15). The pair married in Colorado in 2011 and the model's famous father-in-law designed her wedding dress.