Cervix position

Hello ladies..!!

Can someone explain me how to find a cervix and its position..

I am not able to understand whc is my cervix..

When i insert my finger i find some round thing..

Is it cervix..?!

And also i m unable to find if my cervix is soft or hard.. high or low..

As it is vey needed for ppl trying to conceive..

How to know if my cervix s high or low??

Today is my 12 dpo and my period is due in 2 days..

I felt my cervix s soft n low.. i m not sure if i judged it right..

Please suggest