Hi, I am currently on the contraceptive pill cilest, i have only recently started taking it. I am now expecting my period as i am in my 7 day break of not taking the pills. This morning i was experiencing terrible pain and burning of a uti infection, i am prone to these and very used to them. However, there appears to be a light coloured, small amount of blood in my urine. My periods are usually heavy so i am confused if this blood is due to a serious infection or it is my period trying to come. I am a 16 year old female and am very worried, please help! Thanks.