You should just keep trying or if you have a pump, pump because it stimulates your milk.

When I was leaving the hospital i had to substitute with a little bit of newborn formula just to make sure he was getting enough. Maybe drink the mothers milk tea, you can get it at certain markets and at cvs. After the first week my milk finally came in and I was able to get him off the formula. You can have the pediatrician weigh your baby before a feeding and after a feeding to see if it's satisfying baby.

do you have formula? if so give baby that or. ..drink lots of water and some oatmeal should do the trick. hope that helps