He looks a very happy and very healthy little man!
As for the iron, it's in your breastmilk, and much better absorbed than from formula or food.
Taken from kelly mom
http://www.kellymom.com/nutrition/vitamins/iron.html
Anemia is uncommon in breastfed babies for several reasons
Healthy, full-term babies have enough iron stores in their bodies to last for at least the first six months. The current research indicates that a baby's iron stores should last between six and twelve months, depending upon the baby.
The iron in breastmilk is better absorbed than that from other sources. The vitamin C and high lactose levels in breastmilk aid in iron absorption.
Iron Source Percentage of Iron Absorbed
breastmilk ~50 - 70%
iron-fortified cow milk formula ~3 - 12%
iron-fortified soy formula less than 1% - 7%
iron-fortified cereals 4 - 10%
cow's milk ~10%
Note: The amount of iron absorbed from any food depends greatly upon the milk source of iron (eg, human vs cow), type of iron compound in the food, the body's need for iron, and the other foods eaten at the same meal.
Breastfed babies don't lose iron through their bowels; cow's milk can irritate the intestinal lining (resulting in a tiny amount of bleeding and the loss of iron).
The original iron stores of a full-term healthy baby, combined
with the better-absorbed iron in breastmilk, are usually enough
to keep baby's hemoglobin levels within the normal range
well into the
second six months.
Remember alot of the hvs still dont know wha they are talking about and most just think they know!
Take em with a pinch of salt and do your own research, or ask me
but its all part of the fun! 
