Is this a yeast infection???? Please help!!

after my period last month i noticed clumps of my uterine tissue mixed with a very thick white discharge that clumps together very easily. now that my period is gone all that remains is the thick white discharge, it has little to no smell but did smell sweet for a few days or two. Ive tried monostat and a one day yeast infection insert and noticed little to no change in my discharge. I'm going to the doctors next week but i just need answers on what this could possibly be.

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