yeast infection or hormonal changes?

im concerned that this is a yeast infection. the consistency and amount have been changing over the past week. But 3 weeks ago I started birth control and used Summer's <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> twice. I stopped using SE beacuse i thought it was making me smell. But over the course of 3 weeks the amount and odor of my discharge has changed. I'm scheduling an OBGYN appointment tomorrow just to check if i have one but im still not sure...