Checking Cervical Position..

So I’ve never really done this religiously and figured I’d start and see if it gives me insight. Every single time I’ve ever checked my cervix it has NEVER been anything but almost too high to reach and firm. Last night I checked right before bed (the night before it felt like my DH was 3” longer than usual and not in a good way so I wanted to see if my cervix was super low) and my cervix was indeed lower than I have EVER felt it and felt like a ball of mush. I couldn’t distinguish between the cervix and surrounding wall it was so soft. This morning back almost unreachable and form again. How do people use this to determine anything?