About 8 Weeks Ago I Had A D&C And My

About 8 weeks ago I had a D&C and my hormones and body are completely out of whack as a result. That added with being on birth control for the first time in 15 years- I cannot tell what is normal anymore and what is not because my vagina has become sensitive to everything. Last Monday I had unprotected anal and vaginal sex with my trusted partner where baby oil was mixed in from massages. Early Wednesday I noticed itchiness in my inner thighs that eventually moved to my vagina and anus region. The next day I noticed a chunky white discharge, it was not present in my underwear. I only realized it once I began to look at the area with a mirror and inspecting my vagina. Would the mixture of anal and vaginal intercourse cause a yeast infection? Or could it be something else?