Thank you for your query.
is highly effective if it taken as early as possible after having intercourse.
You have taken within the first hour.
It is a positive point for you.
You have to wait up to the next expected date of cycle.
If it delayed from expectation then you have to check your urine for hcg
test become positive then you have to take decision about the continuation of the pregnancy.
Then you can consult your doctor.