Severe cramping on left side near ovary for a week and a half (on and off but on for HOURS) before my period. Got period on day expected but VERY high first day with bright red blood and bigger clots than normal (not huge). The 2nd day just as heavy with clots and third day, woke up with almost nothing on pad and very very light. Cramps happened again all yesterday and got it heavier this morning again. Usually first day is very light then heavy for 2 then lighter for next 3-4. Help!