I think this just happened to me, too! Except I did get a positive test result on an at-home test, which I took 2 days after my period was due. Got my period 2 days after that, went to see the doc, and my PG test there was negative. The doc said either it was one of those very early miscarriages, or a false positive on the test. The reason I bring it up is because I KNOW I was pregnant, no matter what the doc said. I have been pregnant twice before (one miscarriage, one successful), and although it is hard to describe the feeling, I just felt different. I know my breasts felt unusually tender, and I had these weird lower-abdomen cramps that weren’t period cramps…more like I was gassy, which I had both times before. I didn’t get nauseated this time, though, as this didn’t start for me until about the 8th week.