7:189
هُوَ ٱلَّذِى خَلَقَ كُم مِّن نَّفْسٍ وَٰحِدَةٍ وَ جَعَلَ مِنْ هَا زَوْجَ هَا لِ يَسْكُنَ إِلَيْ هَا فَ لَمَّا تَغَشَّىٰ هَا حَمَلَتْ حَمْلًا خَفِيفًا فَ مَرَّتْ بِ هِۦ فَ لَمَّآ أَثْقَلَت دَّعَوَ ا ٱللَّهَ رَبَّ هُمَا لَ ئِنْ ءَاتَيْ تَ نَا صَٰلِحًا لَّ نَكُونَ نَّ مِنَ ٱل شَّٰكِرِينَ
It is He who created you from one soul and created from it its mate that he might dwell in security with her. And when he covers her, she carries a light burden and continues therein. And when it becomes heavy, they both invoke Allah, their Lord, "If You should give us a good [child], we will surely be among the grateful."