"His first pic!" Gerard, 25, wrote as a caption to an ultrasound photo of his baby boy.
Shakira confirmed the news of her pregnancy in September via her website, writing, "Gerard I are very happy awaiting the arrival of our first baby! At this time we have decided to give priority to this unique moment in our lives and postpone all the promotional activities planned over the next few days."
The mom-to-be has since returned to the stage, showing off her baby bump during a concert at Baku Crystal Hall in Azerbaijan in October.