Is this a cute pregnancy announcement?

We are having a family cookout in a few weeks with my husbands family. Sometimes we all play games or something. My husband and I are trying to find a creative way to make an announcement.

We talked about putting a whole bunch of sounds (like music from famous movies, animal noises, etc) on a CD and then playing them one at a time. If you can guess what animal it is or what movie the song is from, you get a point. The challenge will get more and more difficult and it will end with the last sound being our baby’s heartbeat. Everyone will guess that it’s a heartbeat, and either guess that I’m pregnant, or we’ll have to say something “yeah it’s a heartbeat but where is it from?” And hopefully then they will understand what we’re trying to say. What do y’all think??