If you find out you are pregnant after having intercourse and bleeding, you need to find out the cause of the bleeding before you can determine if there is any effect on the fetus. If the bleeding is caused by inflammation, it will affect the fetus, because gynecological inflammation without timely treatment will lead to intrauterine infection which will easily affect the development of the fetus, and in serious cases, it will easily cause fetal abortion, and cervical cancer will also cause bleeding during intercourse. Cervical cancer can also cause bleeding during intercourse. If cervical cancer has a great impact on the pregnant woman herself, she needs to be treated with medication in time, and if necessary, surgery, and abortion to avoid affecting the fetal development. If the bleeding is during ovulation, it does not affect the fetus much. Ovulation bleeding is a normal phenomenon and does not need to be treated, so avoid having intercourse during the bleeding period. For safety reasons it is best to check the cause of the bleeding and then go to the hospital for regular maternity checks to determine the development of the fetus.