In my opinion I wouldn't risk it. You can talk to your dr but accidents do happen
I would be worried about rocks and stuff like that if you fell out for any reason. My mom didn't know she was pregnant with me until she was about 6 months and she went horse back riding, jumped off a bridge, canoeing, and got drunk twice and I'm perfectly fine just a little ADD lol but I wouldn't want to risk it just in case because you never know what could happen. Maybe your son could go with one of the friends or family members.
Thanks everybody!!! I think I will go camping just no floating.