I'm having pink brown spotting after 7 days from having sex I also had my period the week before having sex & I'm expecting it around the 3 or the 2nd of next month, I took a morning after pill a few hours prior from having sex, I know taking the morning after pill has symptoms of tender breast & cramps & stuff. But could I be pregnant?

You are most likely not. The morning after pill is a birth control pill with more of the control part! That will mess your system up. It is mostly a side affect of that. Come next month and you have no period take a test.

Why are you not on Birth Control? Condoms?