Im 14 years old... is it normal 2 have this??

okk well im 14 years old and i got my period for the first time when i was 12. so i had it for 2 years. soo ma question is.. is it normal to be havingg realllyy..... bad sharp pain in the area where ur left ovary is? im suppost 2 get ma period in 9 days. and im ually active. so please help me is it normal and wat can i do 4 the pain tht will help nd also i have a reallybad headache...