When The Lord saw that Leah was hated, He opened her womb so that she can become pregnant, but Rachel was kept barren.
Leah then had 4 sons ... Reuben, Simeon, Levi, Judah. And then she stopped getting pregnant.
By this time Rachel saw that she was not going to have children. So she cornered Jacob and ordered him to give her children or else she would die.Jacob angrily asked her then if he was The Lord, if he had the power to make her pregnant.
She offered him her maid Bilhah and said to him: 'Behold my maid Bilhah, go in unto her ... and she shall bear upon my knees, that I may also have children by her.' Jacob made Bilhah pregnant and she had a son. Rachel called him Dan. Bilhah bare Jacob another son and Rachel called him Naphtali. Rachel took the boys and considered them her own children.
When Leah saw that she wasn't getting pregnant anymore she got worried and she too took her maid Zilpah and gave her to Jacob to wife. So Zilpah had a son and Leah called him Gad. Zilpah had another son with Jacob and Leah called him Asher.
In these days a young Reuben would help with the wheat harvest, and rounded up mandrakes [narcotics] in the field and brought them to his mother, Leah. When Rachel saw the mandrakes she wanted it and tried to take them off Leah, but Leah was having none of it. She said to Rachel: 'First you took my husband and now you want my mandrakes as well!'
Rachel wanted the mandrakes badly and so she sold Jacob for the night to Leah, in return for the mandrakes.
That night Jacob had no other choice but to lie with Leah, and she had a 5th son and she called him Issachar. She then had a 6th son and she called him Zebulun. She finally had a daughter and she called her Dinah.
Rachel found mercy in The Lord's eyes and she then became pregnant ... she called her son Joseph.
Then it was time for Jacob to move on, away from Laban.
Source ... Genesis 30
