Hi I am 4 weeks 3 days pregnant but today I've had brown spotting which as the day has gone on has led to more pinky colour, I lost a tiny brown clot, also I had mild stomach pains, I took 4 tests 3 days ago which all said positive, including a clear blue digital one that said also pregnant, however after worrying an losing discharge I took another few tests, some early result one and one I took 3 days ago, also a clear blue digital, however the 2 normal ( non digital analogue ) ones said negative but the clear blue digital says pregnant 1-2 weeks? Why is this and is it that I've miscarried?

