Is menstruation coming one day before inside shooting meeting pregnant

Menstruation the day before yesterday, if the female normal menstruation will not be pregnant, that is to say, in the day after sex life if more vaginal bleeding is seen, that is, menstruation, indicating no pregnancy. If you are pregnant, you will not menstruate, so as long as you show normal menstruation one day after sex, you can determine that you are not pregnant. If you do not menstruate, you will continue to observe, because if you are pregnant, you must wait until 7 days after sex to check your blood.