Promoted Mother and Father Pregnancy Announcement Shirts Set. A great gift for the new mommy or daddy for example at a baby shower. However, it is also a great way to announce that you are pregnant. This is for a set. These are printed on our top selling Unisex sized Bella Tees. See size chart pic. Choose from many different colors and sizes. If you are wanting to give the mom and dad to be a great gift then this shirt set is the perfect one.