Difference between birth control and family planning
The difference between birth control and family planning is as follows: birth control means limiting the number of children born, such as having just two or three, in order to protect the family's financial status, and refusing to have any other children for this reason. Family planning, on the other hand, means regulating the spacing of children to give the woman some time to rest and regain her health, after which she can stop using contraceptives (Part No. 19; Page No. 300) and have as many children as she wants. Shaykh Al-Mawdudy (may Allah be merciful to him) discussed the subject elaborately in his book "Harakat Tahdid Al-Nasl" and you can read it, if you are interested. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.