As for the women who have reached menopause, if you have any doubts, their interim shall be three months. As for those who do not menstruate, and discover that they are pregnant, their interim ends upon giving birth. Anyone who reverences God, He makes everything easy for him.
وَالّٰـٔى يَئِسنَ مِنَ المَحيضِ مِن نِسائِكُم إِنِ ارتَبتُم فَعِدَّتُهُنَّ ثَلٰثَةُ أَشهُرٍ وَالّٰـٔى لَم يَحِضنَ وَأُولٰتُ الأَحمالِ أَجَلُهُنَّ أَن يَضَعنَ حَملَهُنَّ وَمَن يَتَّقِ اللَّهَ يَجعَل لَهُ مِن أَمرِهِ يُسرًا
wallaaa’ee ya’isna minal maheedi min nisaaa ‘ikum inir tabtum fa’iddatuhunna salaasatu ashhurinw wallaaa’ee lam yahidn; wa ulaatul ahmaali ajaluhunna any yada’na hamlahun; wa many yattaqil laaha yaj’al lahoo min amrihee yusraa