What Causes Persistent Watery Or Yellow Discharge With A Sour Smell After Painful Unprotected Sex And Taking Emergency Contraception?

Hi I'm 18 years old girl and i had unprotected sex about a month and a week ago, I also took a morning after pill. It was very hard and i was actually in pain during the sex and ever since after that i been getting a watery/creamy discharge everyday and when i look at my underwear at the end of the day it would be damp and the color is light yellow mostly when it's dry. It doesn't have no foul odor like fishy but it does smell kind of higher than it usually does, like a sour kind of scent. Although, for about 2 or 3 days during the month i noticed a chemical kind of scent at the end of the day. Now it's a week before my period is due and I'm getting a pinkish/yellowish discharge and the texture is eggwhite/watery. The discharge is not a lot but it's more than what i usually get. I'm very worried and in it is kind of hard to go to a gynecologist or doctor now. I would really appreciate the help, thank you in advance.