Port Hedland mother Lani Kereopa was reduced to tears when her local supermarkets ran out of the one type of formula her 10-month-old son can tolerate.
But tears of sadness soon turned to tears of joy after a social media post that prompted an outpouring of support from the community and donations of precious breast milk.
"Seven mums have given breast milk," she said.
"I've got enough for three weeks.
Ms Kereopa said availability of a specific brand of goat milk formula, along with many other groceries had been impacted by recent supply chain issues.
"I broke down in my shop thinking, 'how am I going to feed my baby?'," she said.
"There are kids like my kids who can't handle other types of formula and they get quite sick."
Bracing for shame but overwhelmed by generosity
Ms Kereopa had wanted to ask for breast milk donations online previously, but was worried about being shamed.
When she discovered the local supermarket shelves were stripped of baby formula, she was "blown away" by the positive response to a request for either formula or breast milk on social media.
"I can't stop crying because breast milk is such a special thing and it's something I couldn't do, so to have the community give it was like 'wow'," she said.
"These ladies didn't want anything in return which I find really hard because I want to give back."