My boyfriend and I have been having unprotected sex for about a month; I would say close to 6 or 7 times. My last period was the second week of July. By the end of August I began to panic because I still had not started my period, but I also didn't feel pregnant. I finally started my period on Monday, September 10th, but that was almost 2 months since my last period. Is there any chance I'm pregnant? I've taken 5 tests since my last period and they all said negative. Since I'm off birth control and my job has been stressful, could that be why my period was just super late? Also, can slight depression cause a period to be late?

If you had your regular period, you are not pregnant. It is not uncommon to skip a period now and then, and yes stress can cause it.