Rough toddler and pregnant...

Daisy
I have a 2yr old and I'm 15 weeks pregnant and he is so rough with me... Kicking my stomach in bed (we still co-sleep) or when we're just playing or hanging out, he jumps or hit or pushes on my stomach... Accidentally of course... I tell him there's a baby in there all the time and that to be extra careful but sometimes he is just so hyper and active and doesn't realize what he's doing... I just get kinda worried that he's hurting the baby.. Do you think I'm being paranoid? I know right now he doesn't see the changes cuz my tummy is still kinda small but I'm sure as I get bigger and rounder, and he gets older, he'll start to realize something is going on with mommy's belly...