Could I be further along?

Kayla

af was supposed to start today and for the last few months we have been ttc. Last af was on October 5th which was unusually short (2 1/2 days). Today I took two tests and the lines are obviously very dark and instantly showed up. Super excited just wondering if I could be off and I could be further along or if this has happened to any one else. I will be making an appointment to check but I just am wondering if this is a possibility.