Bleeding again 15 days after an aunt is not necessarily pregnancy, it may be ovulatory bleeding or luteal insufficiency or cervical lesions. Ovulatory bleeding is caused by a brief drop in estrogen levels during ovulation, which deprives the endometrium of estrogen support and causes the endometrium to shed, resulting in vaginal bleeding. There are also some women who have irregular periods, luteal insufficiency, shortened menstrual cycles, and early menstruation may occur. There may also be the possibility of uterine and cervical lesions, such as endometrial polyps, cervical inflammatory lesions, cervical polyps, cervical cancer bleeding and other possibilities. Therefore, 15 days after the aunt and bleeding must go to the regular hospital for examination, combined with blood and urine HCG results, if you consider bleeding at the time of implantation, ectopic pregnancy, embryonic decontinuation and other special circumstances, to give the corresponding treatment; if the exclusion of pregnancy need to be further examined, except for luteal insufficiency and uterine and cervical pathology may be.