So...I lost my daughter at 21 weeks and gave birth to her January 12th the same day I had a d and c to get out placenta ect as it wouldn't detach on its own. I bled for 2 and a half weeks. My husband and I have had unprotected sex since I stopped bleeding. My hcg levels were not being monitored by the drs or by me but yesterday I tested and a faint line on the strip (it has now been 4 weeks since d and c) could this be old hcg or a new pregnancy? Has this happened to anyone? When I try to look it up I can't find anyone who has been through the same to get an idea ! Any information would be great!

Thank you x