Well, I thought I'd add my input since our last period started around the same time.
My last start date was the 7th of July, and I'm usually on a 26-28 day cycle, so by This past Sunday, I was growing quite nervous.....And for apparently good reason. I took TWO tests tonight and they both registered "PREGNANT" in less than 1 minute.
I say, most women know their own body. If something doesn't seem right, you should definitely go to your Dr.