Preg question, please help?

I was ually active on Sept 11 and on Yaz. The following week I had a normal period and the following month I had a normal period, except I bled a lot the first day. Then This month, November, I had a spotty day then period for 1 day then spotting and i took some leftover provera that i had and had a period for 3 days but it was light. I've taken two tests, one about a week ago and the other about 2 weeks after I was ually active. What are the chances that I'm preg? I do not feel any symptoms, not sure if my have grown, they have always been big. Shouldn't the test I took a week ago have been accurate? It was my morning pee.