😫 Helppp!!! Which one should I trust??

So this is my first time using clearblue advanced. I am on CD 12 and when I tested today I got a solid smiley face. I thought that was really weird because I have never gotten a positive so early in my cycle, I usually do around CD 20. So I decided to test with some of the leftover opks that I had from last month and they are negativee 😫. Now I do not know which one to trust and the solid smiley will be there in the advanced for the next 48 hours.. So i cant retest... Has this happened to anyone? Am I really on my peak?