Short answer
Contraception can directly affect shared decisions about pregnancy and family life, so openness and mutual discussion are important between spouses.
Islamic Guidance
What Islam teaches
Classical discussions of 'azl include consideration of the rights and consent of the wife. Contemporary methods should likewise be approached with mutual respect and consideration.
Practical Guidance
What you can consider
Discuss family planning honestly before making decisions. If the couple cannot agree, seek advice from a trusted scholar or marital counsellor rather than using secrecy or pressure.
Sources
Sahih Muslim, Book of Marriage.