Thanks for query
As it is tooearly too sya any thing ,delayed periods can be due to tension of sex & un wanted pills .Chances of pregancy are low as you have taken emergency contraceptive
pills .Do you bleed after emergency unwanted pills or not. If not go for pregnancy
test after 7-10 days post delays ,to know the cause.
Hope I have answered your question well to your satisfaction. Wish you speedy complete recovery at the earliest.