i had sore boobs spesh at the side for a week an back ache an af pains 1 week b4 af, then af came 3days early, the first two days wer normal (heavy for me anyway) then really light the next day an ended that night (wednesday) then i had brown blood when i wipe on thurs fri sat now, bin avin af pains an there is a streak of brown blood in knickers, took a test yest came back neg, so please could there b a chance that i am preg or is it all in my head