Hello Sir My Me And My Wife Had Unprotected Sex

hello sir my me and my wife had unprotected sex on 29 sep and on 30sep i had given her an unwanted 72 tablet and then starts bleeding on 6 october to 8 october and again she bleed on 11 october night and it stopped . ITs know 17 november still she dont have period , she also used a strip test but its negative on 15 october, sir please help us .......