Okay, so I was on birth control for almost a year from ages 16 to 17. I am now 18 and just got off of birth control in august. I found it unsafe and unhealthy for future plans when I want a family.(not anytime soon)Well, the week before my period I was having pain in my ovaries and lower back and just sick to my stomach. Could this be from the absence of my birth control?

P.S.-I still have yet to have started, and i'm four days late. Is this normal?