Hi! Congrats for being blessed by God with a baby girl. First of all you need to try consulting with Gynaecologist
and Dietician/Nutritionist. But still will give some tips regarding the same, Salmon fish, Spinach and beetroot leaves, carrot, bottle gourd, Asparagus, etc. Can also use breast pump, under the advice of the Gynecologist. Nothing to worry, till then can give Smilac or Lactogen etc.