I knew I was pregnant about one week after ovulation; one week before the test did! I was so tired all the time, and needed afternoon naps all of a sudden. I also would feel VERY queasy if I looked at my computer monitor for too long, which was new. I called my Mom and told her that I thought I was pregnant days before the test confirmed it.
The symptoms have changed and gotten a bit worse; now I'm queasy all the time and get so BLOATED... not to mention the gas, booby tenderness (and growth!) and occasional headaches. It's all worth it, though!!