Thoughts?

Karla • 02/01/14

Got period last month on the 9th. This month I only spotted lightly but haven't gotten my period. I'm on IUD paraguard so there's no way it can stop me from getting periods. I've been late here and there and have taken tests when I'm late which have all been negative but I have never just only spotted and haven't gotten my period the same week. Could I be pregnant?