Testing your cervix do determine if you ovulating.

Cynthia

I read that you can test your cervix my inserting your finger into your vagina and feeling if it is soft or hard. Soft means you are ovulating and hard means you are not. My question is do any of you ladies have a difficult time finding your cervix? I think my finger is not long enough or don't even know if that is what I'm touching. Any tips? Sorry if this is to TMI.