Bleeding, can't feel my Mirena string, bad cramps :(

[Marlene]

I have had my Mirena in for 9 months or something like that (hopeless at remembering stuff like that, should keep records )
I have had very light spotting once a month, when I would normally get a period, since I had it put in. Last week I had few days of heavier bleeding, but not quite as heavy as my normal period. The last two days I have had extremely bad cramping. I thought I might be coming down with a tummy bug or food poisoning but I do not feel sick at all and have had no vomiting or diarrhoea. It sudden;y came to me today that maybe it was something to do with my Mirena so I had a little feel around and I can't feel the string. I haven't been checking every month but I know that the last time I did check (a couple months ago ) I could feel it.

Do you think it could have moved? Could that be causing the cramping? Could I be pregnant?
The pain of the cramps have eased a little today, but I'm still a bit worried.
Geez, I hope it's just a tummy bug!!!

ETA: I'm not bleeding or spotting at all at the moment.

What do I do????????????????????



Going to bed now, hopefully some replies by the morning to ease my mind.