You'll want to track every moment of your pregnancy, and the Pregnancy Tracker Clear Acrylic Stamp Set will make it easy to do so! Included in the package are 21 clear acrylic stamps designed by Rongrong Devoe that come on a handy 4 "x 8" storage sheet. The stamps include things like milestones, due date, baby's first heartbeat, ultrasound, date of scan, it's a girl, it's a boy, and more. The stamps can be used with an acrylic block and your favorite inks (sold separately). The stamps are by Hampton Art.