question: implant weirdness?

so i’ve had the implant for a little over a year now and it’s been great! my periods are regular and theres never been any issues which brings me to why i’m here. i just got off my period (which was a totally normal one) like a week ago and now i’m experiencing spotting of lightish blood... i’ve had sex so seeing this i was like wait a minute. is this normal? has this happened to anyone else? do you know what this means?