If you have intercourse when your period is not completely clean, you need to observe this time to see if there are any manifestations of dripping menstruation, abdominal pain, or high fever. If there are no such manifestations, it means that the effect is not particularly serious, so you can first observe the next period and not have intercourse when your period comes in the future. For example, if the menstrual flow is not stopping and even accompanied by abdominal pain, it means that there is an infection, so you can take oral anti-inflammatory drugs such as cefixime chewable tablets, 100mg twice a day, or take amoxicillin according to the instructions for 5 days to prevent infection. You can add drugs to stop the bleeding, such as Yunnan Baiyao capsules or Uterine Blood Capsules, which can be taken orally for 7 days to stop the bleeding and avoid prolonged bleeding causing endometritis, and go to the hospital if necessary.