For the past hour ive been getting bad rib ache and back ache just got up for a pee and started expieriencing really bad stomach ache and still have it now along side the rib and back pains. All over my stomach and more painful at the top also stomach is hard? What could this be can't really describe the pain but it is like aching and sharp stabbing all at the same time. What could it be, could it be serious? 33 weeks pregnant