Hello Sir Or Mam I Have Taken Unwanted 72 Within

Hello sir or mam i have taken unwanted 72 within 12 hours after having unprotected sex i took it on 29 july and now it has been 3 days i dont have any bleeding or anything but i am feeling fatigue and tiredness and on 1 aug morning i vomiited what should i do now to know that i am not pregnant and if there is anychance what should i do and i had my last period on 2-3 july