odd period

So I had a really strange period this month. I had felt it on Saturday of last week and I spotted for a little and then it stopped and then Sunday evening it actually did start but not as heavy as it usually was. I had one day I believe Monday where i actually had a heavy flow but then it went back to being light. My period is on it's last day and I don't feel any symptoms of it and everything has gone back to normal. I just need to know if something is wrong or if maybe it was because of the amount of medicine I have been putting in my body due to the ear infection I've had for the past week. I just really need answered. I am sexually active and we do practice safe sex. But my family does not know about it.