PEE OR WATER BREAK

This is so embarrassing but my bladder is so bad now. I cant hold it at all.

when I sneeze, its like a waterfall, same when I cough. I try my best but I just can't. I'm only 27 weeks now but when the time comes how will I know my water has broken or I just peed on myself? Is it a different feeling?

Also does anyone know how to make this better. I've never had a good bladder. ever since I was younger I remember peeing after I coughed. (it runs in the family)I do kegels too.