The 31-year-old actor -- who was recently invited to take over ETonline's Instagram at the 2015 Golden Globes -- secretly filmed his loved ones receiving the news.
Needless to say, some of their reactions filled us with all the feels.
After nearly 10 minutes of heartfelt spontaneous reactions, we finally get to see Justin and Emily open up an envelope to discover the baby's gender -- but that secret is not revealed (as Baldoni is probably saving it for his next video).
However, we do learn that Emily and Justin are expecting to welcome the new addition to their family in June.
This is just the latest in a number of film projects Baldoni has released online, including a super adorable film he shot to propose to Emily in 2013 and his "Good 30" project, in which he encouraged people to make 30-second videos of themselves as they did good deeds.
Congrats to the happy couple! We can't wait to see what kind of incredible baby videos Baldoni has in store.
Check out the video below for a look at some of the biggest and best pregnancy announcements of 2014.