How to announce pregnancy to husband?

Sooo I just found out this morning that I’m pregnant with baby #2 and I want to do a cute video with our son announcing the pregnancy. Like a video of him doing something and at the end like turning around with a shirt that says “big brother” on it.

But I need help thinking of ideas of what to do 🥺

Or if you guys have another cute idea to somehow incorporate our son (and maybe dog???) into the announcement for my hubby :)

Thanks in advance!

My son is 19 months btw