What should I do if I find out my period started after having sex?

Since the egg has not been fertilized, it contracts and degenerates, causing a rapid decline in estrogen and progesterone levels in the blood. The edema in the uterine stroma subsides, the tissue becomes densely packed, the small arteries become compressed and curved, or even go into spasm, leading to ischemia and necrosis of the surface of the endometrium. Then what should you do if menstruation starts after intercourse?

What to Do If Menstruation Starts After Intercourse

If menstruation begins after intercourse, take good care of yourself, get adequate rest, and maintain proper hygiene and protective measures during your period. Sexual intercourse is generally prohibited during menstruation to avoid cross-infection. If intercourse occurs when menstruation starts, stop immediately. Pay attention to vulvar health—wash daily and change underwear regularly, ideally replacing sanitary pads every four hours. Some individuals may experience menstrual bleeding accompanied by abdominal pain and high fever. If these symptoms are absent, the impact is likely minimal; just ensure proper vulvar hygiene. However, if severe abdominal pain or large blood clots occur, or if menstruation does not end at the expected time, there may be inflammation or irritation.

In such cases, take antibiotics for five days to prevent infection. At the same time, visit a hospital for a color ultrasound examination to assess the condition of the endometrium. If excessive bleeding persists, take appropriate hemostatic medications to control bleeding and prevent long-term blood loss that could lead to infection or anemia.

In daily life, maintain a regular diet, avoid spicy and stimulating foods, refrain from overeating, and avoid staying up late. We hope this answer helps you. Wishing you good health and a happy life.