I have had the mirena for about a year now. I had gone about 10 months without any bleeding, then last month, on schedule with my regular monthly cycle, I started to spot. I had spotting for 2 weeks. Now, 2 weeks later, I m spotting again... although my normal cycle would always come during the end of every month (which means I m right on schedule a second month in a row). I m not concerned about the spotting I m currently having. But I am concerned about the spotting I had last month for two weeks. Is this normal, or am I being paranoid?