Quran 2:228

وَٱلۡمُطَلَّقَـٰتُ يَتَرَبَّصۡنَ بِأَنفُسِهِنَّ ثَلَـٰثَةَ قُرُوٓءٍ۬‌ۚ وَلَا يَحِلُّ لَهُنَّ أَن يَكۡتُمۡنَ مَا خَلَقَ ٱللَّهُ فِىٓ أَرۡحَامِهِنَّ إِن كُنَّ يُؤۡمِنَّ بِٱللهِ وَٱلۡيَوۡمِ ٱلۡأَخِرِ‌ۚ وَبُعُولَتُہُنَّ أَحَقُّ بِرَدِّهِنَّ فِى ذَٲلِكَ إِنۡ أَرَادُوٓاْ إِصۡلَـٰحً۬ا‌ۚ وَلَهُنَّ مِثۡلُ ٱلَّذِى عَلَيۡہِنَّ بِٱلۡمَعۡرُوفِ‌ۚ وَلِلرِّجَالِ عَلَيۡہِنَّ دَرَجَةٌ۬‌ۗ وَٱللَّهُ عَزِيزٌ حَكِيمٌ ٢٢٨

The divorced women shall wait three menstruations (before marrying another man). It is not lawful for them to conceal what ALLAH creates in their wombs, if they believe in ALLAH and the Last Day. (In case of pregnancy,) the husband’s wishes shall supersede the wife’s wishes, if he wants to remarry her. The women have rights, as well as obligations, equitably. Thus, the man’s wishes prevail (in case of pregnancy). ALLAH is Almighty, Most Wise.