I started working 4 days a week about a month ago when dd was 6 months. I do not pump enough for when I am away. She consumes more throughout the day then I pump and the freezer supply was dwindled. (more pumpings, an extra one in the morning, going home during the day, pumping at night, etc. are not options that work and/or still leave us short) On the days I am gone, is it okay to give her more solids to fill her up, i.e. is 10-12 oz of breastmilk plus solids enough for her if she is contented with that input? Or would it better to give her formula to supplement? She nurses on demand throughout the night and on the days I am home.