brown discharge!!

okay so in always a little late on my period and i was supposed to start this past wednesday. i haven’t had sex unprotected and even when i did have sex it was May 20th and he didn’t even bust so we stopped. it is now June 11th and i still haven’t started even though it’s only been like 5 days since “i was supposed to start” but i went to the bathroom and thought i started my period but it was just brown discharge and when i wiped it was a light brown on the toilet paper. help!! my stomach hurts how it usually does on my period and my acne is kinda back since i’m supposed to start too