What do the bloody fabric scraps Juno discovers in Winnie's bedroom symbolize in the novel, The Wrong Family?

The bloody scraps Juno discovers in Winnie's bedroom symbolize grief. After each of her miscarriages, Winnie saves a fragment of the bloody garment she was wearing when she lost the baby. Though she recognizes that the habit is strange, Winnie cannot let go of the mementos, burying them with her other secrets in the back of her drawer. The author uses the scraps to illustrate the depth of Winnie's sorrow and longing.