Where is my period!!!!


So I had my period at the end of August, and my ovulation time started the 3rd of September. On the 2nd of September I had sex multiples time, and one of the times it was unprotected, but he did pull out. I am 7 days late on my period and all I notice is my boob are swollen like they would be for my period. My emotions have been all over the place too. Should I take a test? HELP PLEASE!