And Allaah knows best.
Fataawa al-Mar’ah al-Muslimah, 2/658
In a report of the Islamic Fiqh Council, issued during its fifth conference in 1409 AH/1988 CE:
Firstly: it is not permissible to promulgate a law which limits a couple’s freedom to have children.
Secondly: It is haraam to remove the ability to produce children for both the man and the woman, which is known as sterilization, except in cases of necessity as defined by sharee’ah.
Thirdly: it is permissible to stop reproduction temporarily so as to space out pregnancies, or stop them for a specific length of time, if there is a legitimate shar’i need to do so, if that is decided by both spouses with mutual consultation and agreement, so long as that will not result in any harm and so long as the means used are permissible according to Islam, and there is no transgression against an existing pregnancy. And Allaah knows best.
End quote from Majallat al-Majma’ (5/1/748).