Hi ok im supposedly 11 weeks pregnant and I have all the symptoms of a pregnancy. Im am now feeling a butterfly tickling sensation in my stomach alot. My last full period was july. I had heavy bleeding for 3 1/2 days right around the time I was suppose to have a period. But it was shorter then normal. I was told it could be break through bleeding. I take tests and their negative. I haven't taken one since my break through bleeding. What does this mean