Mam. Really really need help. She has taken the unwanted 72 on 3 June. And got her period on 7 June. Which lasted up to 12 June. 7 June was her expected date. And she had again taken the unwanted 72 on 17 June. And got again periods on 23 June. Which lasted for. 3 days. And now. My doctor has suggested that her next periods will be on 23 July. And now it's.29 her period had not came yet. We have done the serum beta hcg test. 10 days after sex. Which was 0.27.Can serum beta hcg test can detect pregnancy 10 days after sex. And mam how long we need to wait for her period. Her date is already missed. And when should we take the pill for withdrawal bleeding? Mam please suggest fast. We are college student and really scared.