Yeast infection?

Cassidy • 21 and mommy of 2! ❤
Okay so for the last maybe 2 days ive had little discharge. Last night i started to feel a little itchy so i used anti-itch cream for a yeast infection. But i dont have any smells or clumpy/white discharge? Im 38 weeks pregnant also and already 3cm dilated.. could this be the cause or am i starting to get a yeast infection??