Hey :) I know where you're coming from. I'm on the pill (ortho lo) and when I first went on it, was bloated/breasts hurt, etc. It makes you feel like you're pregnant for a little while because your body is getting adjusted to the hormones.
Based on what you said about having sex, you're fine. You used a condom and haven't had sex since, although you could and would be protected. As long as you take your pill every day at around the same time (3 hours plus or minus the usual time, check with your doc for your brand), there is an extremely slim chance of pregnancy. If it makes you feel better, you can wait to test until you get your period. Some months I do, because it makes my boyfriend feel reassured.