I waited until my mom's birthday to tell her my husband and I were expecting. I made her this unsuspecting blue Happy Birthday card which contained a coupon redeemable for one grandchild. I made it valid for +/- one month of my due date. She was really surprised!! It was such a fun way to announce the news!
This was the formal announcement we mailed to friends and family. It is a tropical green 5x7 card with an orange swirl photo background. I accented the photo with a green ribbon and bow. The front features a baby block font and a stork with our due date in it's pouch. We chose green and orange to be gender neutral. This item can be found in my shop (https://www.etsy.com/listing/154709346/pregnancy-announcement).