Looking for an exciting way to tell mom and sister!!??

Kendra • Happily Married!! Two beautiful little girls :)
I'm looking for an exciting way to tell my mom,sister, and mother-in-law. I was going wait to Valentines Day and give them a onise(cause I always give them a gift for Valentine's Day) but I don't if I can't wait that long! I think Imma gonna tell them around 10 weeks (I'm 6 now) I need some ideas ladies! I want it to be a shock, fun, and exciting!