Spotting

Hello ladies, I need some guidance in my life. So started to spot on June 2nd which when my period was suppose to start. I thought I was getting my period since the first day is pretty light anyways. My flow is usually medium-heavy, and to my surprise I’ve been spotting since then. I find it weird because it’s been a consistent brown color, no red. I have no other symptoms whatsoever which is unusual because I usually start cramping a week before my period or I have lower back pain. I’m pain free at the moment. I’m just wondering if this has happened to any of you and is it normal? I’ve read a lot about implantation bleeding but it’s weird because I have no pregnancy symptoms. But then again, I’ve never been pregnant before and this is the first time this has ever happened to me. PLEASE HELP!