I would get bloodwork to make sure. My OBGYN told me that sometimes, pregnant womens hormone levels are below what a test can read.. or something along those lines.. Theyres numbers that your hormone levels have to be and most tests cant read below a 6. Youre hormone level can be as low as a 3 and you can still be pregnant. Thats what he told me when i had a scare last year. So you could or could not be. If youre under stress, that could be it. Or, if you had a thought in your head that you are pregnant, its a proven fact that you can actually get what seems like pregnancy symptoms. I hope everything works out!