NORTH CONWAY, N.H. (AP) — The mother of a 15-year-old New Hampshire girl reunited with her family nine months after she vanished says rumors that she was pregnant aren't true.

Investigators have been trying to find out how and why Abigail Hernandez of North Conway disappeared and who may have helped conceal her. She returned home July 20.

Zenya Hernandez tells NBC's "Today" that many people think her daughter was pregnant, but she was not. She also says she believes Abby did not run away and didn't know the man believed to have driven off with her. Police released a sketch of him based on Abby's description.

Abby issued a statement thanking people who searched for her and that she believes their hopes and prayers "played a major role in my release."