Is it possible for a woman to have regular periods or regular monthly period-like bleedings and be pregnant at the same time.

Monthly and regular?: If a woman has ongoing, regular, normal periods after sex, then she is not pregnant. If she cannot be certain that her bleeding was a normal period, then she might possibly be pregnant. A urine pregnancy test (available in stores everywhere) done 3 weeks or more after the last time she had sex will give the answer. Be sure to read the instructions and do the pregnancy test correctly.