Unborn children will appear in the genogram as long as:
The unborn child is recorded with a Child:Parent relationship to the parent (that is configured as child:parent in Reference data in the Admin tool).
The child has a future date of birth recorded (expected date of delivery).
The child will then appear in the genogram with an extra line of text below the icon showing EDD DD/MM/YYYY.
Mosaic is configured with a standard set of child:parent and parent:child relationship types, your system administrator will be able to make amendments and additions if these are required.