My sister told me she was going to have a baby! All her other babies were much older so I wasn't expecting her to have more. 
My sister let us know she was going to have a baby! Her other kids are a lot older so we weren't expecting it. 
user
That must have been quite the surprise. 
assistant
We were shocked to be honest. Then she ended up having two more, one right after the next! 
user
That is so crazy!
assistant