TMIIIIII

Destany

So since Thursday/Friday I’ve had pinkish red/brown discharge but very light on and off and then yesterday in the morning i had blood in the morning but only once, and then back to brown stringy discharge & then this morning i had this when i wiped and now back to very light brown/red spot but only when i wipe and very light, i’m 13dpo and my period isn’t “due” I’ve also been very tired and my back aches but idk how this all works. Have a blood test tomorrow. Took a test at home and it seemed negative... has anyone had this? And been pregnant??? I just need some advice. It doesn’t feel like my normal periods