Missing period?

Whitney

I have an IUD, the paragard, so not normal for a period to be late. I will be getting it out soon, and hoping to ttc. Anyways, I'm really late. My first pregnancy test was a light positive at 6 days late, but more negatives. Through out this whole time I get this cm that is very sticky clear/milky? I guess I'm just a little confused on what is going on?!