I have it too. And when I cough I do pee a little on myself its very embarrassing but its happening! I have to wear a liner.
It's really normal, especially in pregnancy. White is nothing to worry about. Yellow/green with a bad smell is when you see your Dr.
And it doesn't mean anything
How far are you? Most of the time its normal and sometimes its a sign of preterm labor.
Discharge is normal...so is white discharge