Child Information Fields Not Disabling When Selecting "Is this your first pregnancy? - Yes".

Steps to Reproduce:

1. Navigate to the relevant form or section.
2. Select "Yes" for the "Is this your first pregnancy?" field.
3. Observe the Child Information fields.

Expected Behavior:

• If the user selects "Yes" for "Is this your first pregnancy?", the Child Information fields should be disabled, as there should be no previous children.

Actual Behavior:

• The Child Information fields remain enabled, allowing the user to enter details, which is incorrect.