Be positive in ur mind since u got a positive results.
The baby is here finally for u... Happy for u dear. Go and confirm the results with a doctor and then u can rest assured. I guess u will be busy from here onwards, as u have to look for a good gyn/obst and start on pre-natal vitamins, folic acid and really rest.
At this point, dun think about miscarriages, just rest n sleep n dream... Relaxation is very important. If u r feeling stress u r actually stressing ur body and the fetus too. So really rest and be pampered.