So my baby is just over 12 weeks old and has decided that she will only breastfeed roughly between 11pm and 10.30am! When I try to feed her during the day, she gets all frustrated and keeps coming off but is desperate to feed. I personally think shes just too alert and nosey during the day now. The last week I've been feeding her expressed bottles during the day but struggling to keep up with pumping. If i was to substitute a couple of feeds with formula, would my body still produce the milk for the night/early morning feeds? I still want to pump but not to the point where it takes over my life.