White milky discharge, spotting later the same day?

Rebecca
So my vagina was like a little itchy and I thought it could be the start of a yeast infection, I've never had one so my friends told me to look out for cottage cheese discharge. The following day the itching was almost completely subsided and I was expecting the discharge, but instead I had white milky discharge, not like cottage cheese but milky. Later that night i started have very light spotting and the spotting continued for a few days then stopped. I usually have an extremely heavy flow but I convinced myself that it was just my period, Even though I wasn't expecting my period for another two weeks. So two weeks LATER, I get my period... again? VERY heavy. I don't know exactly what happened but I'm curious if anyone has any input for me, thanks loves❌⭕️❌⭕️