Varla (surname unknown) is a homeless woman who lost three of her babies to Social Services due to her crack cocaine addictions, which all her babies tested positive for. She'd beg for cash outside a coffee house so she could support herself.
When a baby was found abandoned and nearly killed, Varla was a suspect. She tried to get away from having a bump and assuming she was pregnant again, but her womb was empty. It turned out the baby wasn't hers. She had pseudocyesis, a condition where her body would trick her into feeling pregnant from the same symptoms.
It's unknown what happened to Varla after the revelation. (SVU: "Taboo")