The difference between pregnancy test brands has never been more pronounced than when one test shows you are positive and another shows you are negative. As someone who has had recurrent miscarriage, I understand the importance of finding out as early as possible.
Women with APS, Hughes Syndrome or as it is known in Australia, Antiphospholipid Antibody, the earlier the results the better. Patients with APS will most likely be started on aspirin and or clexaine injections as soon as they have a positive pregnancy test.
For anyone looking to find out as soon as possible, the earliest PREGNANCY TEST would have to be FIRST RESPONSE.