Older sibling reactions to pregnancy

My 3 year old daughter knows I'm pregnant and that there's a baby in mommy's tummy and likes the idea.

Yesterday, she told me there's a baby in her tummy and that she's having a baby "tommorow". In fact, she announced this excitedly several times. She's having a little baby and I'm having a big baby. Then she brought out a couple of baby dolls and we got to take care of them 😂 hopefully she still likes baby when he comes, lol

If you already have kids, how are they reacting to your pregnancy?