What do you think?

July 20th was the first day of my period, and I have the IUD Kyleena inserted. I’ve been checking the strings about everyday since then. At first they were really short to where I could barely find them. Later I could find the strings fine. Today about an hour ago I checked and they seemed really long? But now they’re shorter. My mom said it’s probably my body relaxing and getting used to the IUD. What do you think?