How are you announcing to the world?

Ariana • 28 years old, due 8.31.16 with baby #1 after miscarriage in October

We've already told my immediate family (parents and siblings) and plan to tell my husband's family after our first u/s next week, but we haven't figured out how we want to announce to the world. Most likely a Facebook post with a cute picture, around or on Valentine's Day, but I need some inspiration.

The picture below is how we told my family and will tell my husband's family. When they opened the box the little card was on top of the ornament.