HCG after D&C

Maya • Waiting for the #1 since December 2013.

I miscarriaged and got a D&C; on 14 February (2 weeks ago). Still spotting until now.

I tested with hpt and got two lines. Is that normal? How long the HCG supposed to be out of my body after D&C;?

Thank you for your answer 🙏🏻