###Human: My partner is bleeding since eight days post ECP. Why? ###Assistant: Hi. Thanks for the query. I can understand your concern. The possible causes of your partner's irregular spotting are as follows: 1. As her periods were delayed by last month itself means around one month ten days by the time you had sex. So, the possibility of pregnancy has to be ruled out. 2. Continuous usage of emergency contraceptive pill can lead to hormonal imbalance and menstrual irregularity. 3. Withdrawal effect due to the usage of the contraceptive pill. It is better to consult your gynecologist once, let her get examined and go for urine pregnancy test and ultrasound. With this workup the possibility of pregnancy can be ruled out and also the possible cause of her problem can be identified and treatment can be taken accordingly. Take care.