Jessa Duggar has shared a sweet family update, posting pictures of her three children enjoying themselves during a day trip fruit picking.The mom-of-three, who is expecting her fourth child with husband Ben Seewald, uploaded the pictures on Instagram, giving fans a glimpse into their week."5lbs of goodness, and a bunch of smiling faces!" she captioned the post, which saw youngest daughter Ivy covered in fruit juice after clearly eating the berries on her walk.MORE: Counting On fans speculate