Mind Cymru is calling for specialist mother and baby units to be reinstated in Wales.
The last mother and baby unit in Wales closed in 2013 and since then mothers who need specialist support have had to travel to England.
Mother and Baby Units provide specialist care to women with mental health problems such as severe postnatal depression and postpartum psychosis.
Around 10-15 per cent of new mothers develop postnatal depression. It usually develops within six weeks of giving birth and can come on gradually or all of a sudden.
Charlotte Harding, from Cardiff, developed postpartum psychosis four years ago following the birth of her son.