I just started the nuvaring to help regulate my period, but since I started I've been experiencing shooting pains in my lower abdomen, pelvic region, and even inside my vagina. It lasts for about 20 seconds then fades, it's been happening about 15 times a day, its so bad all I can do is breathe through it, is this normal? Should I go to the doctor or wait it out? This pain started a couple days after I started the nuvaring.