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.

Genesis 50:10

50:10 When they came to the threshing floor of Atad on the other side of the Jordan, they mourned there with very great and bitter sorrow. There Joseph observed a seven day period of mourning for his father.