وَٱلَّـٰٓـِٔى يَئِسْنَ مِنَ ٱلْمَحِيضِ مِن نِّسَآئِكُمْ إِنِ ٱرْتَبْتُمْ فَعِدَّتُهُنَّ ثَلَـٰثَةُ أَشْهُرٍ وَٱلَّـٰٓـِٔى لَمْ يَحِضْنَ ۚ وَأُو۟لَـٰتُ ٱلْأَحْمَالِ أَجَلُهُنَّ أَن يَضَعْنَ حَمْلَهُنَّ ۚ وَمَن يَتَّقِ ٱللَّهَ يَجْعَل لَّهُۥ مِنْ أَمْرِهِۦ يُسْرًا
wa-allāī ya-is'na mina l-maḥīḍi min nisāikum ini ir'tabtum faʿiddatuhunna thalāthatu ashhurin wa-allāī lam yaḥiḍ'na wa-ulātu l-aḥmāli ajaluhunna an yaḍaʿna ḥamlahunna waman yattaqi l-laha yajʿal lahu min amrihi yus'ran
And those who no longer expect menstruation among your women - if you doubt, then their period is three months, and [also for] those who have not menstruated. And for those who are pregnant, their term is until they give birth. And whoever fears Allāh - He will make for him of his matter ease.
— Saheeh International
If you are in doubt, the period of waiting will be three months for those women who have ceased menstruating and for those who have not [yet] menstruated; the waiting period of those who are pregnant will be until they deliver their burden: God makes things easy for those who are mindful of Him.
— M. A. S. Abdel Haleem
And those of your women as have passed the age of monthly courses, for them the ‘Iddah (prescribed period), if you have doubt (about their periods), is three months; and for those who have no courses [(i.e. they are still immature) their ‘Iddah (prescribed period) is three months likewise, except in case of death]. And for those who are pregnant (whether they are divorced or their husbands are dead), their ‘Iddah (prescribed period) is until they lay down their burden; and whosoever fears Allâh and keeps his duty to Him, He will make his matter easy for him.
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali