this month, a week before my period i had what was like heavy spotting. just brown tissuey spotting. I got my period, but it really only flowed when i was urinating. WHen it did come out, it was heavy, dark, and thick like normal. Im worried I might be pregnant because for the last month or so I have felt sick almost every day. But i have also just quit smoking. COuld that be part of it? any advice?