Super Worried!

I don't know if I'm just freaking my self out but I work in childcare with school agers and one of my students a boy about 8-9 came up behind me caught me off guard and squeezed me around my stomach super tight. He knows I'm pregnant which frustrated me more my stomach has been tight but I'm wondering if it's from me being nervous I started crying a little while later cuz I got so freaked out. No spotting should I be worried?