there is a chance that u can be pregnant.. there are a lot of women who bleed at the beginning of pregnancies... i kno there is a reason for this but not too sure wot it is... im sure koala will be able to tel u the medical side of it!!
if u can just try to wait til ur next period is due.. if it doesnt come take another test and if it shows negative get urself to ur drs!! also if u r anxious or stressed ur body wil play games wit u and ur period may have stopped due to this!!! hope it all works out how u want it to!!
thinking of u hun!!!