And Baby Makes Four

A new custody battle intensifies the debate over surrogacy

Her belly swollen with the child she will soon bear, Anna Johnson looks like any other expectant mother. But there is a big difference: the Garden Grove, Calif., nurse, who is seven months pregnant, has no genetic claim to the baby she is carrying. The egg and sperm came from Cris and Mark Calvert, an Orange County, Calif., couple who hired Johnson to bear their "test-tube" baby for $10,000 because Cris had a hysterectomy and is unable to carry a baby. Last week, in a ground-breaking case, Johnson sued to keep the as-yet-unborn child.

The dispute highlights the changes that surrogacy...