Very low & soft ? Advice please :))

Brittany • Mother to my little man . Wife to his wonderful daddy . 19 .
Typically I have a difficult time checking my cervical position . Mainly because I don't know what to feel for , but I've been checking for about two weeks now & tonight it's very and soft ? AF is due tomorrow from what I've heard when AF is coming is low and firm . Any suggestions on this ? What does it indicate , or does it even indicate anything . I know it's not a reliable source of determining a pregnancy . But I know it is an indicator . But what does low & soft mean ?? AF due tomorrow ?