List Of How Long Will Home Pregnancy Test Be Positive After Miscarriage Ideas. So it’s normal for your urine pregnancy test to be positive for up to three weeks following a miscarriage. This can cause a false positive pregnancy test.

This can cause a false positive pregnancy test. It typically takes from one to nine weeks for hcg levels to return to zero following a miscarriage (or delivery). Even in women with a confirmed miscarriage, a pregnancy test may show a positive result for up to a month afterward.