Quitting birth control

K

So I stopped taking my birthday control pills the last week of June so the date of my last period was June 23 and I still haven’t started my period. Took a test a week after my expected period (July 21) and it was negative. Now tomorrow will be 8 weeks after my last period and still no sign of blood or anything... how many weeks/ months did it take for your period to be normal after stopping birth control?