Relationships and Families: Sex, Marriage and Divorce
Aligned to the AQA 8062 specification
- Topic
- Thematic studies
- Level
- Intermediate
- Reading time
- 11 min
- Published
- 14 June 2026
- Updated
- 1 July 2026
On this page
Key takeaways
- Most religious traditions teach that sexual relationships belong within marriage; sex outside marriage is called zina in Islam (strictly forbidden) and is regarded as sinful in traditional Christianity.
- The Catholic Church forbids artificial contraception (Humanae Vitae, 1968), holding that the unitive and procreative purposes of sex must not be separated; most Protestant denominations accept contraception as responsible family planning.
- In Christianity, marriage is a sacred covenant (and a sacrament in Catholicism) with three purposes: companionship, legalised sexual union, and procreation; in Islam, nikah is a legal contract and religious duty with similar purposes.
- The Catholic Church does not recognise divorce — an annulment declares no valid marriage ever existed; Protestant and Methodist traditions permit divorce and remarriage on compassionate grounds; Islam permits divorce (talaq) but regards it as the most disliked of permissible things.
- A common exam mistake is confusing annulment with divorce — a Catholic annulment is not the dissolution of a valid marriage but a declaration that a valid marriage never existed.
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Key terms
- Nikah
- The Islamic marriage contract — a legal and religious agreement requiring the free consent of both parties.
- Zina
- Any sexual relationship outside marriage in Islamic teaching — strictly forbidden, including both pre-marital sex and adultery.
- Talaq
- Islamic divorce — a man may pronounce talaq up to three times with waiting periods for reconciliation; women may seek divorce through khul'.
- Khul'
- A form of Islamic divorce initiated by the wife, typically involving the return of the bride gift (mahr).
- Annulment
- A Catholic declaration that a valid marriage never existed — not the dissolution of a valid marriage, and distinct from divorce.
- Humanae Vitae
- A 1968 Catholic encyclical that forbids artificial contraception, holding that sex must remain open to the possibility of new life.
- Cohabitation
- Living together as a couple without being legally married — accepted by many people today but regarded as less desirable than marriage by most traditional religious views.
- Natural family planning (NFP)
- The only form of family planning permitted by the Catholic Church — monitoring natural fertility cycles to avoid or achieve pregnancy.
- Sacrament
- In Catholic teaching, a visible sign of God's grace; marriage is one of the seven sacraments, making it a sacred and indissoluble covenant.
Frequently asked questions
The Catholic Church does not recognise divorce; an annulment may be granted if no valid marriage existed. The Church of England permits divorce as a last resort and allows remarriage at a vicar's discretion. Methodist and Protestant traditions accept divorce and remarriage on compassionate grounds. Islam permits talaq but regards it as the most disliked permissible act and encourages reconciliation.
The Catholic Church forbids artificial contraception, teaching (in Humanae Vitae, 1968) that the sexual act must remain open to new life. Separating the unitive (bonding) and procreative purposes of sex is held to be morally wrong. Only natural family planning — monitoring fertility cycles — is permitted.
Zina is any sexual relationship outside of marriage, including pre-marital sex and adultery. It is strictly forbidden in Islam and applies equally to men and women. Its prohibition is understood to protect family structure and social order.
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