What does this mean

💙💙💗Desiree💗💙💙 • Mommy of 4 blessings 🧑‍🤝‍🧑👧🤰

Im.confused idk if i.ovulated or.about.to or if.this.is.implantation spotting i have been getting.dark.lines.on my opks for.a.few.days now. And now just yesterday started.having light brown spotting..this is.the opk i know its neg. But what can it be?? If the spotting started.yesterday and.i.had sex do.i.still have a.chamce.if.i.ovulated maybe yesterday??