At a recent smear test I was told that they couldn't see the threads to my coil - what happens now??

My mind is working over time. I have a horrendous fear of hospitals and I have been told that I may have to go for a scan. I am going to a specialised Gynae clinic tomorrow, but if this has happened to anyone else, I would be grateful for words of reassurance NOT horror stories!

If it's relevant, I have two children who were both delivered by C section but have been told that I have a very small cervix. I had the coil fitted under a spinal block at the same time that I had a biopsy done following an abnormal smear test about 4 1/2 years ago.

Any words of advice/comfort would be great right now.