Tenar,
I know exactly where you are coming from! Unfortunalty I was one of the ones whos first preg ended in a miscarriage - I was 6 weeks at the time. We were very lucky and fell preg straight away and now I am over 24weeks!
I am still worried off and on - I was petrefied till that magic 12 weeks mark that I was going to loose again and I had many many scared with quite a few bleeds. Its very nromal to be worried and as all the lovely ladies on here will tell you they have all been worried at some point as well.

The worry doesnt go away - I still have days when the bub isnt moving much that I get very stressed.
In the early days If I had any issues or if I felt I was not right I would head staight to my doc or to the Rmergancy dept at the hospital - they may all have thought I was a looney but i made ME feel better (especially when I had bleeds)
The way I coped was getting on BB and venting or askin Q's (thank god for BB!!) also I tallked to ppl about how I was feeling and I learnt to trust my body (hard after a loss) I tryed very hard to be possitive (even thru the bleeds) and tried to keep calm.

I can fully understand all the fears that you are facing - as will many many of the ladies / men on here.
Try to relax (i now easier siad than done!) and try to remain positive. Love and look after your self.
I hope I have been of some help! Hard to put some of these things in words!
Love
Kate.
PS feel free to PM me if you have any questions or wnt to vent!