Tummy jitters

I know this may be a dumb question. Ut please understand that I'm a worried first time mom. I was laying on my side and then I got up quickly and felt water or vibrations coming back to the center of my belly. Is that maybe the baby? I can't hurt it if I get up so quickly that everything inside my tummy shifts positions fast right? Today was finally the day I've felt my baby in there ever since afternoon to evening ❤ I just dont want the baby to get hurt because that feeling in my tummy after laying on my side and getting up so fast was a new sensation for me.