I was placed on Birth control pills around 16 because i have elev...

I was placed on Birth control pills around 16 because i have elevated hormones, and Birth control helped bring them back to normal, and regular my wacky cycles. Lately i just can never remember to take my pill, i have alarms on my cell phone and i still forget. I started Nuvaring last month and i have 1 more week on it and I've been having pains like needles in my ovaries and random cramps everyday. Also I've noticed my left kidney has been aching. My sex drive has because non existent. I can't believe have had these complications just on the first dose. I've noticed a lot of you are just now having the problems with the nuvaring, i wonder if they changed the formula?