I had unprotected on 5/21 sex 2 days before my expected period on 5/23. My period was late I didnt get it until 5/28. My period has been light pink for 6 days it's so light I don't even need a pad I only would see it when I wiped. Also it was on and off. Yesterday for about an hour it was slightly heavier and only a few drops were on my panty liner then it went back to barely visible and I only see the light pink color when I wipe. Yesterday when I experienced the heavy bleeding I did get cramps, a headache, and just felt tired. Now since I had the heavier period I'm just having cramps that are just non stop.