What are the excuses that permit regulating the timing of pregnancy?

Question:
Some people take birth control pills on the pretext that they want to regulate their lives. Does this fall under killing children?

Answer:
No, this is permissible if there is a need for it, such as if she is breastfeeding and takes it, or if she has an illness, or during Ramadan for the sake of fasting due to necessity; in that case, there is no harm, if Allah wills. Otherwise, it is not from burying [children] alive; it is not from burying [children] alive.
Q: Some of them take these pills saying we are regulating our lives. For example, they have two or three children and they stop pregnancy?
The Shaykh: No, it is not befitting for him. It is befitting for him if it is for a need, or a condition, or an illness, or for breastfeeding. The Shari'ah came with the exhortation to have children and to increase the community: , he (peace and blessings be upon him) said: So the man and woman should seek reward and be patient until the community increases, and perhaps Allah will grant them righteous children. But if it is for a condition; the woman is sick and it is difficult for her, or breastfeeding is difficult for her to carry and nurse, this is a temporary matter.
Q: What is the ruling on one who does this?
The Shaykh: It is a temporary matter; if it is for a need, there is no harm.
Q: What is its ruling?
The Shaykh: It is not befitting. The least of its states is that it is disliked.