How to feel the strings on my Paragard IUD?

I got my paragard iud inserted about a month ago and I can still feel the strings, however, I cannot tell if they are the same length as when I first got it inserted. The string gets all tangled together and they curl up around my cervix. When I try to straighten them I can feel it pull and Im too afraid I will dislodge my iud. How do I know if my iud is in the right place if I the strings keep curling up and getting tangled? I defiinately do not want to risk an accidental pregnancy because I cant figure out if my iud is in the right place or not.