By not having unprotected sex.
Skipping sugar pills to avoid a period reduces, and does not raise, your risk of getting pregnant on the pill.
The traditional way of getting pregnant is by having intercourse - so the best way to avoid this is by refraining from any sexual relations. It is the only 100% guaranteed way to prevent pregnancy.
avoid having sex without protection...
OMG... *Facepalm*
Of course you can get pregnant. Your age has nothing to do with it - once you have your period, even if you are 8 years old, and you have unprotected sex or sex with a condom that broke or was used improperly, you may become pregnant. Use protection not just to avoid pregnancy but to avoid sexually transmitted diseases. Your body is a temple. Take care of it because no one else will if you don't.
With BCP women can avoid pregnancy by stop having sex... If you stop The Pill and continue having sex, you will most likely get pregnant
By having good spelling.
fights and kids
If one is in Rome one should try to avoid having their picket picked and certainly try to avoid getting run into by a Vespa.
You CAN get pregnant, but there is only about a 3% chance.
You can do a lot of things. Some of them might not be good for you. If the reason you were concerned about protection was to avoid getting pregnant, then sure; what's going to happen, you're going to get MORE pregnant? If, however, your concern was sexually transmitted diseases, then it's probably a good idea to go ahead and continue with the protection. In all cases you should probably ask your doctor first. There might be reasons it would be best for you specifically to abstain for the duration of the pregnancy.