 [ Symptoms ] do some medications cause increased bruising [ Disease ] hi if your getting your periods the chances of being pregnant is no unless the just 3 days and very light then you could be pregnant ok but you can always see your doctor and get a test done there a good doctor can just look at to know if you are pregnant but with all this stress your getting then that could well be your answer as stress is a great body killer and upsets it in many ways and for women periods are the first things to get upset hope this helps you good luck