Its normal for both. Just don't freak out. Him pushing on your belly won't do anything baby is well protected my 5 year old sits on my tummy all the time and he's like 50lbs
Of course you're going to be paranoid, that's your baby in there and you're responsible for him or her. Try not to stress too much though:)
No it is a good thing u got a little paranoidd thatvgood mother instint