A two week old breastfed baby has a stomach which is between 45 ml and 60 ml. So in fact your baby won’t be drinking that much at each feed. Please do not compare the amounts it says on the side of formula tins because they are hugely over estimated.
Generally if a baby will latch on it is recommended that you supplement him at the breast. There are instructions for this at
http://www.breastfeedingonline.com/5.html
And a video clip at
http://www.breastfeedingonline.com/newman.shtml
Scroll down the page until you come to Lactation Aid. (Everything is in alphabetical order.)
If the baby is having problems latching on then finger feeding is suggested as this can help to train the baby to take the breast.
There are instructions for this at
http://www.breastfeedingonline.com/8.html
There is another article, What to Feed the Baby When the Mother is Working Outside the Home at
http://www.breastfeedingonline.com/17.html which you might be interested in.
This web site belongs to Dr. Jack Newman. He is very pro breastfeeding and has a very direct way of speaking about it. The information he has on this site is very useful when mothers run into problems.
Best wishes,
Barb