Hi Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern...
Yes
levonelle is effective in preventring
pregnancy especially if taken within 24 hours of having sex. Actually levonelle is an
emergency contraceptive pill which works by inhibiting
implantation of fertilized egg on the uterus. It has high success rate of over 95% if taken within 24 hours of having sex.
Therefore chances of pregnancy are very less in you even if you were ovulating on those days. As you took the pill one hour later of having sex, You should now relax as pregnancy possibility is very less. You might have your next period delayed due to intake of levonelle pill.
Don't take levonelle or any morning after pill frequently. These pills are intended to use in case 0f emergency & have higher side effects than other regular methods of
contraception such as regular birth control pill, condom etc.
Refer to a gynaecologist for more queries
Don't worry you would be fine
Hope this information helps