SPOTTING AFTER OVULATION HELP

Tazz

So the first day of my last. Was May 23rd my cycle usually lasts a week and my cycle usually last 7 days. I had unprotected sex June 3rd , 4th, and 6th. Now as of Monday morning June 8th ive been spotting starting out a soft faint pink only upon wiping. Now today is the 3rd day and its now a brownish color I.now have to wear panty liner, cramping bloating, cravings, help COULD I BE. PREGNANT. I HAVE A 2.½ YEAR OLD SON ALREADY