Should I wait longer?

I'd say it's still a little early (My aunt is an obgyn and explained this to me when I started TTC). Once an egg is fertilized it still takes SIX days to travel down and implant itself in your uterine lining. After that it takes 1-2 days for your body to start producing HCG or the pregnancy hormone. So the earliest you can test and get results, and the earliest you'd get actual pregnancy symptoms, is day 7-8. The best time to test is the day of your expected period, so I'd just wait as long as you can because those symptoms can also be pms symptoms. You just never know Good luck!