Hi there, from what I can tell it is different for everbody. I had positive tests until the middle of my first AF. My first AF arrived exactly 5 weeks after my D&C. I've read that some people get negatives sooner though.
i was still getting BFPS right up until AF after my loss which was about 5 weeks if my memory serves me well
Hiya Shell Sorry to read about your loss It generally depends on the gestation you miscarried at as to how long it will take for your HCG levels to return to normal, but usually your HCG levels should be undetectable after 6 weeks. -After a loss at 12 weeks I could still see a faint line on sesitive HPTS up to 6 weeks after, but the line would only appear after more than the time you should read the test.