How can you take it as soon as you remember when IT'S GONE? OK, you have a few options. Ideally, you should keep around an extra pack of pills for this very occasion, suggests Minkin. And if you don't have one handy, you can ask your doctor to call one in for you.
But, again, it's not a huge deal to miss *one* pill, so as long as you haven't missed any others, you don't need to worry. Your other option would be to take the next pill in the pack, and then just be one day ahead for the rest of your cycle, says Minkin. (For instance, if you flushed a pill on Wednesday, you could take Thursday's and just continue that way.) If you do this, remember to start your next pack a day early, so that your inactive week isn't more than seven days.
And as long as you only had one pill go rogue, you don't need to use a backup method of birth control.