Yesterday morning I was 5 weeks pregnant and even got a positive reading when I woke up (we took so many tests all positive!) but by mid afternoon I started spotting and getting cramps.  I took another test which said negative but was confused as to whether this was accurate, could it be low hormone due to fluid intake etc.  Fought my way to get a doctors appointment with basically the feedback that they didn't know and to what and see.  Overnight I bled more and have another negative result this morning.  I think it's all confirmed now that it was the worst case, just struggling for it to sink in.