Is it OK to use condoms?

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Check below answers in case you are looking for other related questions:
Family Planing causing health difficulties
Using birth control pills at first in case the marriage fails

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Related Answers:
Her husband cannot have intercourse with her because of the pain she feels. What is the solution?
Can she masturbate if her husband cannot satisfy her desire?
If he has intercourse but does not ejaculate, ghusl is still required
Family Planing causing health difficulties
Using birth control pills at first in case the marriage fails

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