How to tell cervical position ??!

Jessica • I`m 29 I have one amazing smart lil girl who is 6 I love being a mommy . !! Trying for a lil sister or brother ?
Maybe tmi but I usually track my cm but how do I tell high low . ? Hubby usually tells me wen its soft lol but tracking from here on out how do I tell what is a good way to exsplain it so I can start loggin that data too ! 
Thanks in advance sorry if it's tmi