سورة Al-A'raf (The Heights ) - الآية 189

It is He Who created you from a single soul, and from him made its mate for him to gain comfort with her; so when the male covered her, she was burdened lightly in her womb, and she therefore moved easily carrying it; and when she felt the burden heavy, they both cried to their Lord Allah, “Indeed You may give to us a child as You will, so we will surely be thankful.”