Something happened to my IUD.

I don't know if it's been expelled or pushed further into me, but I can't feel the strings, and neither could my doctor, so an ultrasound has been ordered for me to figure out if it's even in my body anymore.

Logically, I know that 1) I had my period two days ago and 2) the only people I've slept with in the past 6 months both had vasectomies many years ago, but emotionally, I'm like

All the What-Ifs run through my mind, and no amount of logic can get rid of them. I now have a stress headache and hate that I have to wait all weekend before I can even schedule my next appointment.