I've been tracking my period for a few months now as me and my partner have been trying to concieve, this month I was 12 days late on my period and I was getting mood swings and stomach cramps. I took two tests a few days apart and both negatives. 3 days ago I started bleeding lightly and only when I wiped so I was thinking it could've been late implantation due to the colour etc. TMI but there was also very small clots the second day, it doesn't seem like a period it's not heavy enough and I'm also experiencing light abdominal cramps. Am I just overreacting and thinking the worst or could it be a late period??