We had sex several times this month it was the first month of the Nuvi Ring the dr had me put it in 8days after my period started. Well of course in the heat of the momenets my ltr and I didn't think about the pull out and of course we had sex 3days into the nuvi ring and again for the next 2 1/2 wks well I have had spoting the last few days more dark old looking blood nothing heavy. Why is this could I be pregant?