i did have PROTECTED sex about 10 days ago. and nothing was wrong with the condom, no breaking or anything. i have had pregnant like symptoms though for about 2 months; cramps, breast tenderness, nasuea. but i have loss of appetite. i have taken 2 pregnancy tests and both were negitive. my period should be coming next week, but im still worried. could this just be really bad PMS...is this normal?