Has anyone else had a bleed and been ok?

I've just had an awful shock. Been to the toilet and noticed some brown discharge. There doesn't seem to be any more of it and I've been feeling fine. No "aggravation" to cause it like heavy lifting or sex. I've rang the hospital and they said try not to worry it can happen, but if there's no more and I feel ok it's prob ok, but to ring my midwife ASAP in the morning or if anything changes overnight go to a&e. I'm having a lie down trying to relax and could do with some good vibes. It's a first time, very longed for pregnancy.