﴿ ۞ هُوَ ٱلَّذِى خَلَقَكُم مِّن نَّفْسٍۢ وَٰحِدَةٍۢ وَجَعَلَ مِنْهَا زَوْجَهَا لِيَسْكُنَ إِلَيْهَا ۖ فَلَمَّا تَغَشَّىٰهَا حَمَلَتْ حَمْلًا خَفِيفًۭا فَمَرَّتْ بِهِۦ ۖ فَلَمَّآ أَثْقَلَت دَّعَوَا ٱللَّهَ رَبَّهُمَا لَئِنْ ءَاتَيْتَنَا صَٰلِحًۭا لَّنَكُونَنَّ مِنَ ٱلشَّٰكِرِينَ ﴾

“IT IS HE who has created you [all] out of one living entity, and out of it brought into being its mate, so that man might incline [with love] towards woman. And so, when he has embraced her, she conceives [what at first is] a light burden, and continues to bear it. Then, when she grows heavy [with child], they both call unto God, their Sustainer, "If Thou indeed grant us a sound [child], we shall most certainly be among the grateful!"”

Please check ayah 7:190 for complete tafsir.