Genesis 16:2

16:2 So Sarai said to Abram, “Since the Lord has prevented me from having children, have sexual relations with my servant. Perhaps I can have a family by her.” Abram did what Sarai told him.

Genesis 29:35

29:35 She became pregnant again and had another son. She said, “This time I will praise the Lord.” That is why she named him Judah. Then she stopped having children.

Genesis 31:35

31:35 Rachel said to her father, “Don’t be angry, my lord. I cannot stand up in your presence because I am having my period.” So he searched thoroughly, but did not find the idols.