Is it possible to never get a negative pregnancy test after a missed miscarriage and d&c if you've had unprotected sex after the all clear from the doctor? It's been almost 7 weeks since the d&c for our missed miscarriage and im still getting positives they're lighter then when I started testing to watch it fade and have some idea when I may start my first cycle anyone else have this happen? Is it possible for this to be left over hcg from my missed miscarriage or a new pregnancy?