Genesis 29:31 in the World English Bible
The LORD saw that Leah was hated, and he opened her womb, but Rachel was barren.
Context
30 And he went in also unto Rachel, and he loved also Rachel more than Leah, and served with him yet seven other years.
31 And when the LORD saw that Leah was hated, he opened her womb: but Rachel was barren.
32 And Leah conceived, and bare a son, and she called his name Reuben: for she said, Surely the LORD hath looked upon my affliction; now therefore my husband will love me.