New parents already have enough to second-guess without someone repeatedly questioning whether they understand their own baby’s cues.
When that person is also the main source of childcare support, setting boundaries can become especially complicated.
One mother is struggling with that after her three-month-old began feeding more frequently during what appears to be a growth spurt.
Twice in one week, her mother-in-law insisted the crying baby could not possibly be hungry and spent several minutes trying to distract her instead of offering the prepared bottle.
The baby became increasingly distressed, and afterward MIL suggested stretching feeds simply because the formula packaging listed a longer interval.
Now the mother is worried about leaving her alone with the baby at all.
Scroll down to see why an upcoming night of babysitting has turned into a much bigger family conflict.
A new mother grows uneasy when her MIL repeatedly ignores the baby’s hunger cues
Sometimes the most stressful part of caring for a baby is not uncertainty about the baby, but having another adult repeatedly challenge what the parents are observing.
That seems to be the OP’s real frustration. Her daughter cries near her usual feeding time, takes the bottle once calm enough to eat, and is gaining weight appropriately.
Yet instead of treating those observations as useful information, the MIL appears determined to prove that the baby should follow a timetable she prefers.
The medical guidance is actually fairly straightforward.
The American Academy of Pediatrics says that, for most healthy full-term infants, parents should generally respond to hunger cues rather than rigidly follow the clock.
Formula-fed babies commonly eat about every three to four hours, but individual needs vary, and babies should be allowed to regulate how much they take.
The CDC similarly emphasizes responsive feeding and notes that crying is often a late hunger cue.
That makes the MIL’s insistence on stretching a crying three-month-old to four hours especially questionable.
“The packet says three to four hours” describes a typical range, not a rule that a hungry baby must wait until the fourth hour.
If the parents are worried that 6–7 ounces per feed is unusually high or that reflux is affecting feeding, asking the pediatrician is perfectly reasonable.
But that consultation should be about the baby’s individual growth and intake, not about proving the grandmother right.
The AAP specifically recommends discussing consistently high formula intake with a pediatrician rather than guessing.
There is also a deeper conflict here about authority.
The MIL hears guidance from the baby’s mother as criticism of her parenting competence: “I DO know how to care for a child.”
But babysitting someone else’s infant is not a test of whether she successfully raised children decades ago.
The relevant question is whether she can follow these parents’ current instructions.
That matters because trust is essential when someone is providing respite care.
The OP is already dealing with postpartum depression and needs dependable support.
Leaving her daughter with someone while wondering whether that person will deliberately delay feeding could make that respite more stressful rather than restorative.
A productive boundary therefore does not need to become a debate about who understands babies better.
It can be very concrete: when the baby shows her established hunger cues, offer the bottle; do not deliberately stretch feeds to prove she can wait longer; contact the parents if something seems abnormal.
If the MIL cannot agree to that without arguing, Friday-night babysitting probably should not happen yet.
The sad part is that the OP is grieving more than a childcare arrangement. She expected unconditional support and instead discovered that help comes with resistance to her decisions.
But dependable help must make a parent feel safer, not require them to surrender confidence in what they know about their own baby.
Here’s what the community had to contribute:
These Redditors backed feeding the baby on demand and rejected MIL’s rigid feeding beliefs
These commenters warned that MIL should not be trusted alone with the baby if she withholds food
These Redditors criticized the husband for doubting his wife instead of consulting the pediatrician himself
These commenters shared experiences showing babies may naturally need smaller, more frequent feeds
The real issue isn’t whether the baby sometimes eats at three hours or four.
It’s whether MIL is willing to follow the parents’ instructions instead of overruling them because she thinks she knows better.
A hungry three-month-old should not have to cry for fifteen minutes while an adult argues with the feeding schedule.
Asking the pediatrician for reassurance is reasonable, but until MIL can respect the baby’s cues and the parents’ decisions, leaving her alone with the baby may create more stress than relief.
Do you think Friday’s babysitting should be cancelled?
