New research commissioned by Aldi has found 57 per cent of parents in Gloucester experienced loneliness after having a baby.
The study found feelings of isolation often increase around five months after birth, when visits reduce and routines change.
Clinical psychologist Dr Caroline Boyd says connection and support are vital during early parenthood.
PANDAS Foundation is partnering with Aldi during Maternal Mental Health Awareness Week to raise awareness and provide support for parents.
The campaign includes funding for confidential support services and mental health information on baby wipe packaging.