Jen Arnold, of TLC's 'Little Couple,' discusses cancer diagnosis

Jen Arnold and Bill Klein on "The Little

Jen Arnold and Bill Klein on "The Little Couple" season 2. (Credit: TLC)

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Jen Arnold, who stars with her husband, Bill Klein, on TLC's "The Little Couple," has opened up about the rare cancer she first revealed publicly last week.

"There are moments I feel just terrible," Arnold, 39, tells People magazine. "I can't believe it is happening. Other times, I feel like this is just a bump in the road."

She and Klein, 39, who was raised in Port Jefferson Station and graduated from Comsewogue High School in 1992, appear on the magazine's cover. "That beautiful hair not mine; a 'garment,' " Arnold tweeted Thursday. "I'm bald now." She tweeted Tuesday that she has so far undergone seven chemotherapy treatments.

The first symptoms of what was diagnosed as stage 3 choriocarcinoma appeared while the couple was in India to pick up newly adopted daughter Zoey, 2, People said. Arnold -- an attending neonatologist at Baylor College of Medicine and the medical director of the Simulation Center at Texas Children's Hospital, both in Houston -- began bleeding. The couple lived in Port Jefferson Station before moving to Texas.

"My initial thoughts were all about Zoey," Arnold tells the magazine. "But then the bleeding got worse and I was feeling lightheaded." After contacting her OB-GYN, she flew home while Klein stayed with their adopted son Will, 3, to complete Zoey's paperwork.

The cancer, Arnold learned, began in September with a nonviable pregnancy in which the embryo had no heartbeat. "The one time I get pregnant, I get cancer," she said. When a cancerous uterine mass did not initially respond to chemotherapy, she underwent a hysterectomy.

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