It's difficult to tell. Could you share a little more information, like the first day of your last period and a typical length of your cycle?
I will share that sometimes the body will produce a surge of estrogen in the latter half of the cycle, thus causing some breakthrough spotting. Also, many of the symptoms associated with pregnancy are also that of AF's impending visit, including cramps, sleepiness, and increased appetite.
it would depend on where you are in your cycle...if you O'd before you had intercourse then more than likely you are not pregnant, but if you were O'ing during Nov. 1st when you had sex, you very well could be...It may be AF about to show...this last cycle I had the same symptoms
this may be implation bleeding if you dont start bleeding like a normal period in a couple of days i say take a test. its possible that you had sex while you were ovulating it takes only 5-10 days for everything to take place so the timing fits