What does this sound like?

Yeah, lol another "Do I sound pregnant" question...Ok, I had my last FULL • the second week of June. At the beginning of July (just 2 weeks later), I thought I started my • again. However, I soon realized it was not my •. It was just one tiny bit of brown, one time. This month, I was two weeks late for my • ...when I actually did start to bleed, it only lasted for about 30 hours. I have been dry for a few days now. And I'm starting to become curious, I have took 2 hpts, they were both negative. The only "symptoms" I have had have just felt like pms. I still feel as if I'm "pms-ing" though. Do you think my tests were wrong, and should I go ahead and test again, or wait a while before I do?