You may experience some discomfort and symptoms after having sex during ovulation, but usually, they won't last long. However, some people may experience light bleeding after sex, which is called withdrawal bleeding. This bleeding is often caused by hormonal changes in the body, which can also cause some discomfort and symptoms.

1. Effect of drugs: Some drugs may cause withdrawal bleeding, such as oral contraceptives, hormonal drugs, etc.

2. Sexual intercourse: Having intercourse during ovulation may also cause withdrawal bleeding. This is because during sex, a woman's hormone levels rise and then suddenly drop, which can cause the lining of the uterus to shed and bleed.

3. Other diseases: Some other diseases may also cause withdrawal bleeding, such as cervical diseases, endometrial diseases, etc.

Although withdrawal bleeding is a normal physiological response, some people may experience discomfort or pain. If you experience withdrawal bleeding after sex, it is recommended that you pay attention to your symptoms and seek treatment under the guidance of your doctor. If you experience discomfort or pain, you may need to take some medications to relieve symptoms. In addition, in daily life, you should pay attention to maintaining personal hygiene and avoid excessive sexual behavior to avoid frequent withdrawal bleeding.

Withdrawal bleeding is a special physiological reaction that usually occurs in the middle of a woman's menstrual cycle, and is more likely to occur near ovulation. While it may be uncomfortable or painful, usually, it doesn't last long. If you experience withdrawal bleeding after sex, please pay attention to your symptoms and seek treatment under the guidance of your doctor.