Genesis 16:2-4 MSG

2 Sarai said to Abram, "God has not seen fit to let me have a child. Sleep with my maid. Maybe I can get a family from her." Abram agreed to do what Sarai said.
3 So Sarai, Abram's wife, took her Egyptian maid Hagar and gave her to her husband Abram as a wife. Abram had been living ten years in Canaan when this took place.
4 He slept with Hagar and she got pregnant. When she learned she was pregnant, she looked down on her mistress.