I had the same problem earlier in my pregnancy and it ended up being a bacterial infection. I would go to the OB to be sure. Yeast has more of a white discharge while bacterial infections seem to be more of a clear color. Hope this helps a little.
PS you can look online and find a few natural things to eat to help with things like this too
It sounds more like an infection. You should see your health care provider for an exam to confirm what it is (it could be yeast but there are things that look like yeast and aren't...they are treated differently).
Im in the medical field, however im not a doctor. it sounds like to me you have some type of infection. does it hurt when you pee? what color is the discharge? how often are you using the bathroom? it the area red or have any color to it that would not be normal? have you had a period, is it late on time?