Hello. Been TCC baby #1 for 6mo. My period is regular and I use two different apps to track my cycle and symptoms. Period was predicted to arrive sept 19. I took a pregnancy test Friday and came back negative.  As of Monday 09/27 I was 9 days late. I felt cramping and tender breast a few days before the 29th. Monday after noon I began spotting then it turned to what seemed a heavier period but with severe cramping and some back pain. By the evening I was passing bright red blood, clots and tissue. I was sure I was pregnant despite my negative test. This doesn't seem like a normal period. Plus I've never been this late or had cramping this long.  I feel like I'm going crazy. I have an appointment with my doctor for a check up. I'm hoping to get clear answers. If anyone has gone through something similar please share.