Move along. There are no tests marketed or sold to give a conclusive negative test result earlier than 3 months.
You don t have to wait 12 weeks for agab, but just for your peace do it again (ab test) at 12, because WHO said that is conclusive and period, Your agab test will give you verry good indication of your status. You can google laboratories in your city and try to find agab test or so called duo (combo) test!
So anyway you have to wait for 12 weeks ? Which places offer AG/AB test ?
preliminare agab test after 28 days and then retest it with ab only at 12 weeks :)