Why does my body love to torture me

I have an IUD for almost 2yrs now. Everyone says “you won’t get pregnant with that” but there’s SO many stories and people I even know who have. So I worry! My period has always been super regular but last month I was a couple of days late. I tested and wasn’t pregnant. This month (as of today) I’m 8 days late. I took a test the day I missed my period (pink dye) and it was negative.. so I didn’t think anything of it. Now I’m EIGHT days late.. literally never late like this. BUT I know anything & everything can change that. I’ve had cloudy “sticky” discharge and yesterday (none today) anytime I ate something I became INSTANTLY repulsed by it. So weird. I’d want something but as soon as I ate it I was disgusted 😅😅 tell me I’m crazy. I don’t know. I think my body is playing tricks