Transit bm to fresh milk

Hi, my LO is turning 1 in 2 weeks time. currently my bm supply is getting low. May I know how much fresh milk can she drink in a day, can she take fresh milk at 2am feed? My LO haven't sttn. Kinda worried if she the too much fresh milk. Her feeding timing now is 6am, 11am, 4pm, 8pm, 2am. Her solid intake is depends on her mood.