Birth control trouble

Patient: Hey doctors, i’m 21 yr old girl i’m on birth control; sprintec- (norgestimate and ethinyl estradiol) i’m on my second week and missed my monday and tuesday pills so i took all 3 pills on wednesday. However i was sexually active on thursday morning and took the pill after, what are the chances i will get pregnant, i dont want to so i need to know how to prevent this, help me please, any help would be appreciated thank you