It is not safe to have sex during a woman’s ovulation, even if it is only a few thrusts and jerks. Moving a few times in the vagina during ovulation may bring prostate fluid containing sperm into the vagina, even though there is no ejaculation. Therefore, although the chances are not great, there is a possibility of pregnancy. Especially for women with regular periods, it is extremely unsafe to have such an act during ovulation. Although the probability is low, there is still a possibility of conception, and it is recommended that if your period is delayed for more than 7 days and you don’t come, promptly use a test paper or go to the hospital to detect whether you are pregnant. If there is a need for contraception, take the emergency contraceptive pill within 72 hours afterwards to prevent pregnancy. If there is no need to prepare for pregnancy, make sure to take scientific safety measures when having sex to avoid unwanted pregnancy.