Faint Line on Clearblue Digital?!

Sydni

I’m probably going crazy but my period is 12 days late and I keep testing negative. I took a Clearblue Digital just now (after holding my urine for 4 hours) and it said “Not Pregnant” but I cracked it open and see a faint line! I know you probably aren’t supposed to open it but is this real?! 😵‍💫