There is no obligation to become
niddah on a monthly basis. It is halachically permissible to
extend your cycle by taking multiple packs of pills back to back but please speak to your doctor first.
You would only become
niddah once you experience a flow of blood. Some women are able to successfully take three packs consecutively without a break but other women begin experiencing breakthrough bleeding before getting through the full three months. If you start experiencing bleeding (or staining that doesn't subside after a few days), it usually makes sense to stop taking the active pills (even if you are mid-pack in the second or third pack) to allow your period to come, and restart the active pills after a seven day break (either placebos or seven pill-free days). You may have better success building up a tolerance to extended use of the pill by starting with two packs back to back and building up to three packs during subsequent cycles.
Please feel free to get back to us with any further questions
B'hatzlacha!
