Implantation??

3/26 was first day of cycle. Next start date is 4/1 and I'm like clockwork. Miscarried last month though and was about 3 days early. Fertile window was 3/13-3/19. super breast tenderness the last 4 days and tonight had the smallest amount of lightest pink (almost salmon orange/pink) tinged discharge. Could this be implantation bleeding? I've been told it's darker usually. My cycle is 10 days away?