I've had the implant since April of 2015 and I had a few spotting days...not much. But this past week I've had like a normal heavy period. When I looked it up and called doc to ask about it, I found out that spotting or occasional periods are normal. I've been bleeding for a week tho...but it's getting lighter and lighter like the end of a period does. I think you're ok. If you feel like really bad cramping or the bleeding is abnormal or starts to become heavy I would call the doc or provider. I did just have a pap smear that came back normal so i dont think theres anything wrong with the spotting or occasional bleeding. Hope this helps.