It is possible for menstrual bleeding to occur 9 days after ovulation, plus or minus 1 day. This timing can vary depending on the length of your cycle. If you experience heavier bleeding and strong pain in the lower abdomen, it may be normal within the context of your cycle. Just monitor the bleeding to ensure it does not increase or become more frequent. If you have any other questions or concerns, it is recommended to consult with a healthcare professional.