Bleeding from intercourse is not related to pregnancy in any way. Normal sexual intercourse does not cause vaginal bleeding. If bleeding from intercourse is fresh blood, the first thing to suspect is vaginal inflammation, tumor and cervical inflammation and tumor. Contact bleeding is an early manifestation of cervical cancer, so having intercourse bleeding must be taken seriously enough to go to the hospital immediately for gynecological examination to exclude malignant lesions of the cervix. If you want to know whether you are pregnant or not, you can usually use urine pregnancy test after half a month of intercourse to determine whether you are pregnant or not. If you want to know if the pregnancy is caused by pre-miscarriage after intercourse, you can immediately try with urine pregnancy test paper to determine.