I am so confused. I have had brown spotting for the past five days but no cramps or sore boobs. I have never had spotting before. I have been having horrible headaches, nausea, mood swings. I also have some bloating and discomfort in my abdomen. I feel pregnant but I went to the doctor yesterday and took a blood test but it came back negative. what should I do? this has never happened to me before. I need some advice.