If you become pregnant and you say you are on the pill, then they will immediately do a blood draw and test your blood to make certain that you are not at lethal (for the fetus) doses of the medication, or that you are not suffering from some hormonal issues which could be lethal (for the fetus and you). Honesty with doctors make it possible for them to treat you and even save your life. If you want a break from the pill then tell the doctor and also follow his/her recommendations on how to proceed while off the pill and how to get back on the pill. The modern 'The Pill" comes in various forms and chemistries, meaning saying your on 'The Pill' doesn't mean anything of value to know which form you are taking. So I do not know if you are on the one that you take for three weeks and are off one week (during menstruation) or if you are on the one that resets your hormones that requires you to remain on them permanently and not stopping and stopping so as to not lead to 'womanly issues' like seriously heavy flow (to the point of hemorrhaging). Yes some varieties of the pill it is 'ideal' to take a break once in a while, however most of the modern variations that are out there that are used as a contraceptive (and not as part of a therapy to address other 'womanly issues') are perfectly safe to use for decades and are more effective over time. If you are worried about possible side effects you need to bring these up with your doctor. There are now new inserts (I can not recall the name) which are inserted and do nothing chemically to your body, they physically keep you from dropping an egg to where sperm can reach it. The Diaphragm may be another option for you, condoms - there are so many contraceptives out there that you do have options. If you want to stop using the pill the fine - stop. but if you get pregnant you need to be perfectly honest to the doctors when it comes to questions about 'the pill' and your use of it. For your health and the babies health.