Answer by  
                                                                                          Kriket (1029)
                                                            
                          
                          
                                                          Generally babies eat about an ounce an hour, regardless of age. So if your 4 month old is eating every other hour, they are eating about 2 oz at a feeding. Sometimes it's hard to tell when they are at the breast. If you are pumping and they are eating more then this, they are probably being overfed.