I feed my 3 week old baby every 2-3hours Im breastfeeding most of the time I only do once a day formula I also pump 2 to 3 times a day but this past 2 days when I pump I only pump .5 to 1.5oz so I noticed she is starting to drink less also because when I formula feed her she drinks 1.5 oz also she use to drink 3to 4 oz before what should i do or what's going on or what am I doing wrong???