Could these symptoms possibly be leukemia or another cancer?

I know none of you are doctors and you cant give me a diagnosis but it would be nice to get the thought of others on what may be wrong. For the past few weeks i have noticed small and large purple bruises on my thighs, mostly on my right side. They didnt start hurting until a few days ago. They fade away and new ones form. They look like capillary bruises to me. And yesterday ive noticed blood in my stool and abnormal vaginal bleeding. Im on the pill and have taken it reguraly for 8 years now and have not missed a pill in over a year. Please help.