What is the ruling on taking birth control pills for a limited time?
If there is a need which requires this with no harm as a result, while both spouses agree to such, then there is no harm.
[Translator's Note] Shaykh Ṣāliḥ Al-Fawzān was asked about the difference between family planning and birth control. As it relates to family planning he said - in short - it is ḥarām unless the woman's life is threatened or due to severe health concerns. However, as relates to birth control the Shaykh said,
Birth control is something different, and this is when the mother does not have to ability to endure back to back pregnancies due to her being physically weak and unable to handle a pregnancy so soon (after her previous pregnancy). In such a case she can take birth control to delay pregnancy until she is ready health-wise and physically, to handle a pregnancy. This is called birth control and not family planning.