I Had Some White Thick Like Wet Toilet Paper On

I had some white thick like wet toilet paper on my vagina when i spread the lips so i assumed it was a yeast infection and called my doctor who prescribed me a one time pill, later i looked at my vahina and on the inside there js a small pink flap with some blood on it in the middle of my vagina that i have never seen before. I havent had sex recently but my bf did finger me a couple days ago. Wondering what this is? My vahina is a bit sore but there is no foul smell nor is it itchy