TMI but curious 😊

Tasha • My husband and I are trying for our tie breaker baby! , we have one girl age 9 and one boy age 7
So I'm due for AF on the 20th in 4 days but I have noticed that my discharge is white and creamy I honestly couldn't tell ya what it used to be because I didn't really start checking it until I began TTC for my tie breaker baby , I guess I just wanted to know if this could be an early sign or AF coming or possible pregnancy