Bleeding 5 days before expected AF

Hi guys, need some help here. Do and I are ttc. Last month had a chem preg at 4w4d. Started trying again as soon as bleeding stopped.

Did opk testing and got a positive on CD12 and peaked CD13 dtd on day 13 and 14.

Had lots of creamy white cm after ovulation until CD22 which then turned pink, CD23, rusty brown, CD24 light brown and now on CD25bright a gush of red blood with a few small clots! Bled when I woke up and lasted only 1 hr now no blood when wiping, only a very small amount of scant red blood mixed with cm up near cervix. Did a test BFN. have very mild cramp only on left side.

anyone else had this happen 5 days before AF DUE?