my period comes regularly but since feb. 2014 it start to be abnormal. i had sex feb and by feb. my period delayed for a week then by march its delayed again of 3 days so my march 26 but by april mya period didnt came but by may 26 here it is again then june no again then july 26 again sept no again then oct. yes it came then nov. no no again but by dec it came early dec. 10... but dec. 3 i have sex that time again but im protected then now jan and now feb 10 my period its 2 months delayed now... i know im 100% sure im not pregnant but what bothers me if there something wrong inside me... im really worried pls help.