Genesis 29:29-31 International Standard Version (ISV)
29 Laban also gave his woman servant Bilhah to his daughter Rachel to be her maidservant. 30 Jacob[a] also married Rachel, since he loved her. He served Laban another full seven years’ work for Rachel.
31 Later, the Lord noticed that Leah was being neglected,[b] so he made her fertile, while Rachel remained childless.
Genesis 29:29-31 New International Version (NIV)
29 Laban gave his servant Bilhah to his daughter Rachel as her attendant. 30 Jacob made love to Rachel also, and his love for Rachel was greater than his love for Leah. And he worked for Laban another seven years.
31 When the Lord saw that Leah was not loved, he enabled her to conceive, but Rachel remained childless.