Rough 1 year old & Pregnant

Anna

So my 1 yr old is pretty rough. he has no idea that im pregnant because he is still so little that he cant even understand. but, he will he my stomach an turn an throw himself into it an sometimes gets my belly good enough to wear i get a little angry an scream... not at him but just out loud because hit hit me and hurt an it makes me nervous. so im just wondering? how much can the baby take? im 18 almost 19 weeks and i just wanna make sure he cant hurt the baby an what to do. i try to block my belly as much as i can but he seems to get it a lot more then i can control.