If it smells check with doctor. Goodluck
As long as it doesn't have an odor or a weird discolor to it, it should be normal discharge. If it has an odor, or you notice that it's yellowish, then you should talk to your doctor and see if you have a yeast infection. If you do, don't stress. Yeast infections are common during pregnancy!
Depends on the discharge. I've had a clear or green discharge thru my whole pregnancy so far and my dr said extra discharge can be normal in pregnancy but it never hurts to have any kind of discharge checked out