What does 1 Samuel 4:19 mean?

Eli’s daughter-in-law, Phinehas’s wife, was pregnant and about to give birth. When she heard the news that the Ark was taken and her husband and father-in-law were dead, she went into labor and had her baby. 1 Samuel 4:19 - Modern Text Bible

(The tragedy continues: Phinehas’s wife goes into labor from the shock and grief of the news.)