They say cervical position is not a "good indicator" of pregnancy or not. When AF comes your cervical position should be low and open, however it can vary from woman to woman when it makes its way down. Some notice it lowering after ovulation others it can happen the day before AF arrives so its tricky. For pregnancy your cervix should be high and closed(can feel slightly open if you have had a vaginal delivery before). I personally had a sneaking suspicion I was PG when my cervix stayed high when I was expecting AF within a few days. In my case I was in fact PG. I hope this helps and doesn't confuse you lol.