Hi, I am not due for my period until september 18, but yesterday saw little spotting (faint brownish red not pink) it dint bleed or stain but on tissue?

Ovulation spotting. is probably what you had. It is rare but possible. I hope this helps. If you want to talk more about this schedule a virtual appointment with Dr. Yetimyan at www.healthtap.com/dryetimyan.