No, you're not alone. I took the August MCAT too (first time taker) and I'm still waiting for secondaries. I spoke to my advisor and he told me not to worry since they'll be interviewing into March (and I added, "for waiting list positions."). He shrugged at my comment. <Sigh> First time applicant. I should have known better, taken the April MCAT and submitted my application in June.
Keep your head up. I'm trying to, so that I don't get awashed in this application mania.