Ack! I can't find my slimplicity book, I know there's one at work, I'll look at it tomorrow for you.

OK, found it.

"Pregnancy: add an extra 600kj = 1 milk and 1 meat serve per day.

Breastfeeding: add an extra 2500kj = 2 breads & cereals, 1 milk, 1 meat, 1 fat, 2 miscellaneous"