Consult a doctor  as soon as possible..there will be some pathology behind it,take treatment to stop bleeding as soon as possible and go for an ultrasound scan to detect any pathology.may be some emotional or physical stress will also be the reason for your bleeding..it's not clear in question whether you have bleeding with pain or not or you have any other accompanying symptom.In homeopathy , treatments are available without any side effects,instead of hormonal pills