Day late on period and I’ve had enough for a panty liner I had used a tampon because I thought AF was about to happen but for a couple of hours I only stained the tampon. I’ve seen brown, pink and a little of bright red blood. I’ve had lower abdomen cramps and lower back pain. I took a test 4 days ago and it was negative. I M/C in November at 8 weeks and have been trying to conceive since. Typically I don’t have light periods it’s medium and def by day 2 its not so light like this is. I ’m not sure if it’s a light period I usually don’t have or implantation bleeding.