My periods are messed up already but ive come off aweek ago from a shorter period then normal now im on again only lightly I usually come on twice a month but they are normally heavy ive been to the doctors and they said its nothing to worrie about as I use to be on the pill and the injection but that was a year ago now I have been trying for a baby with my partner thats why I came off contriception but im a bit worrie there is something rong as im nt bleeding as much even with my first period a week ago do you know what could cause this?