Im 14 and havnt started is this ordinary? What are the symptons to starting your interval?

Im 14 and havnt started is this ordinary? What are the symptons to starting your interval?
you Lucky!
I didn't start til I was 15, you should be pleased! symptoms are recurrently cramps and achiness (ugh!) but it's different for everyone. I didn't really get any symptoms at adjectives my first time. see your doctor if you're at all concerned, you won't be wasting their time and they can put your mind at rest and offer you more information.