I started what I think was my period 5 days early and normally my period is always the same time of the month. And I only bled for 2 days. My normal period is normally about 3 to 4 days. Has this happen to anyone else. I had sex last month the night before ovulation day and wondering if I had the implanation. Bleeding? Should I take a test and if I do is it still too early for it to show positive?