The pills will likely be effective, even if the 2nd was taken later than prescribed, but we can't know this with certainty. If you didn't ejaculate inside her, there is no pregnancy concern. For future, these pills should not be used as a regular birth control method. They are for emergencies, such as an unplanned sexual encounter or birth control failure. Overuse of these pills can cause hormonal imbalance. Condoms can easily be used instead.