I had an irregular cycle about 4 months back where my period last for a little over 2 weeks with light spotting in the first week and medium flow in the second. My periods have been regular prior to that. The next period started close to my expected period start date about one week later with light spotting for 4 days only. I had 4 normal period cycles since then with slightly heavier bleeding and cramps which is what all my prior cycles have been like until this month. I am on Day 2 of my periods with very light flow. Should I be concerned?