My periods have always been like clockwork so I took a hpt when I was a week late with negative result. I took one yesterday (at 2 weeks late) and got a very light positive but today, after walking around at a theme park all day (no roller coasters, not taking chances) I had pinkish red mucusy discharge. I have very tender breasts and nausea the same time every day. Someone please reply if you have any advice. My husband and I are climbing the walls after today.