AF or Pregnancy. (TMI post)

Lindsey
So AF was due 11/17 according to glow, my other app said 11/16 I was late until yesterday when I thought AF showed her face... Hubby and I were BD'ing and I started bleeding it was very bright red and filled with mucus... Last night went to bed didn't bleed at all, today every time I changed my tampon still no bleeding... I had a cervical biopsy 2.5 weeks ago not sure if the bleeding could be the cause. Any advice? Should I test? Should I disregard it?