I had sex and little white balls came out my vagina. It doesn't itch, burn or hurt. And I'm on birth control. I have the IUD placed in my uterus.?

Yeast infection. You may have a yeast infection that is associated with a curdy discharge. https://www.google.com/search?q=yeast+infection+vaginal&espv=2&biw=1280&bih=638&source=lnms&tbm=isch&sa=X&ved=0CAYQ_AUoAWoVChMIipPfwLDbyAIVBlcmCh2ovw3G see pics for comparison. You may set up a consult with me and I can send in a prescription for you Best wishes Dr M.