Hello doctor, my wife last period was on 25 -28 feb 2023 and and we had intercourse in 2 march, and within 18 hrs she took I pill. No withdrawal bleeding happened. And her expected period date is 22 march. Now it is 25 march no period yet came, she is feeling pain vomiting from last 1 week. What should I do? Is there any chance of pregnancy?

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