You are probably just fine this time, and most doctors/clinics will advise you that EC is unnecessary in this case. However, do remember that the more late you are with a pill, and the more pills you miss or take late, the greater the chance of a possible pregnancy.
This is why doubling up the pill with a condom is a great idea all the time.
The pill is very effective - if taken perfectly, it's nearly 100% effective (estimates range from 95-99%) - but if it's not taken properly (1 pill a day, at the same time each day), that efficacy level goes down accordingly.
"Maypole/The ties that bind you will unwind/To free me one day/And everything decays..." - XTC, "The Wheel and the Maypole"