What is happening to me? Discharge + clouds inside

So i had an unprotected sex 1 week ago few days after, the lips of my vagina started to itch and the next thing i know, the inside of my vagina is like covered in clouds. My underwear also started to become wet a little by that day and so i decided to wear pads the next day and it looks like i leaked pee (sorry TMI!). This has been going on for 4 days and i’m so confused! I’m 2 days away from my supposed period date and I just don’t know what to do!

Another note is that i also took a levonorgestrel pill 3 days after the unprotected sex cause the pharmacies near my place closed down for CNY.

Any opinion and past experiences from everyone is much appreciated!