I suspect the inconsistency in the production was due to my stress level at office. Few times that I am too occupied with works and I delayed my pumping session to 1-2 hours than my usual pumping time. Thus, milk production will be low for that day. Or even when I did not eat a lot.
I tried to use breastfeeding calculator from JustMommies.com. The result came out like this:-
Breastfeeding CalculatorAccording to our calculations, a baby weighing 18 pound and ounces will need approximately 19 to 23 ounces of breastmilk while you are away.
Please keep in mind that this is based on the typical average child. There will be some variances based on age. For example a younger child may need less breastmilk and a child that is over or underweight may need more or less breastmilk. Please consult your doctor for more specific questions about how much breastmilk your child should be taking.
So true. Everyday I packed Ilyaas 18oz for drinking and another 3-4 oz for his nestum. and today I made him mash potato utk bekal ke rumah babysiter. Harap2 Ilyaas ok with the mash potato, so that after this I don't have to give the extra 3-4oz EBM for him anymore for the nestum.