My preiods have never been very regular, but I have not had a period now for about 5 or 6 weeks. I have done 3 pregancy tests all of which were negative. This morning I started bleeding, but very lightly and have read that this can happen when you are pregnant. I havent had any other sytoms as yet, but am confused because tests are showing negative, the last one was Wednesday last week. Anyone else been in the same situation? What happened?