Brown Stringy Discharge

Hi all, I have a question (mainly to anyone who’s had this). I started the birth control Junel Fe 1.5/30 on the 7th of this month because I thought I started my period that day. My periods usually start out pretty heavily and get heavier from then on until about 7 days later when it ends. This time around however, it started with a brown patch with a clot in my underwear, was very light pink and extremely light afterwards for a few days, and then progressed into a stringy brown discharge that hasn’t lightened at all. Is this normal if you’re starting out a new birth control? There’s no chance I’m pregnant, I’m taking the pill to regulate and shorten my periods. Has anybody had this happen to them?