Petrified of miscarriage

         Two days ago I stopped experiencing feelings of sickness that I'd had practically every day for a month. I'm roughly 10 weeks and read that it's normally for loss of sickness around this time due to the placenta. However, this morning I experienced some light brown discharge. I called my midwife who (temporarily) assured me that brown discharge is nothing to fear. Unfortunately I'm now fearing the worse and my 12 week scan is 2 weeks away. Has anybody experienced anybody anything similar? I could do with some reassurance. X