Sally Pattison, pictured with her daughters Rebecca (5), left, and Leigh-Anna (3), says: “The centre was a lifeline for me. I had really severe postnatal depression when I had my first child. I didn’t have any support and I didn’t leave the house. I had postnatal depression with my other children, too, but because by then I was able to use the children’s centre it was totally different. I knew I could go there and spend the day if I needed to, without feeling paranoid that people were judging me." Photograph: Lorne Campbell for the Guardian