Stringy brown discharge & 2 days late (PIC)

Dear ladies,
My period is 2 days late.. I had red blood when I wiped myself after I went to the toilet last night and thought that my period is here. Put on a pad and didn't think much of it. But the bleeding went away half hour after that and ever since then, I've been having stringy dark brown discharge for the past 12 hours. I'm just afraid to take a HPT since I've always been disappointed. Just wondering if any of you ladies have experienced this? Please share your thoughts wth me. Thanks!