Genesis 38:19

And she arose and went away
To her father's house immediately, as soon as ever she had parted with Judah; and lest she should be found by the person that would be sent with the kid, and be discovered, she made all the haste she could: and laid by her veil from her, and put on the garments of her
widowhood;
that it might not be known or suspected that she had been abroad.