Birth control question

I was on the nuva ring for three years, all of the sudden my left side started bothering me, what do you think it is

Don't mean it's your Birth Controll.

I was on birth controll. I had problems like that;
it wasnt because of my birth controll. It can
be a ingrown hair; From sports; or anything.
Go to the doctor; She/ He should give you
a medicine; It will work. Mine was so bad;
I couldnt walk.

Where exactly does it hurt in your side? Up closer to the ribs, down and closer to the groin, or the middle where the navel is?
Your Dr would have to see you and do an exam and maybe do an ultrasound. Sorry, but in situations like yours I can't see anything. If the pain is not severe and not constantly bothering you then make an appt with your Dr but... If it begins to be constant and the pain is getting worse go to your Dr. , a walk-in clinic, or emergency room and tell them what is going on.
Sorry to have so little advice for you. Hope you feel better soon!!! {=