Can this be implantation bleeding or nah?

Caira
Hey, so me and my bf were rubbing our genitals together about a month ago, but that's all we did. He didn't cum. I got my period a week later at it's expected time. Now it's time for my period to approach again (in 5-6 days) and I'm noticing brown discharge in my panties.. what is this? When I wipe after I pee I don't see it.. I only see it in my panties