'Little Couple' Star Reveals Details About Cancer

Getty Images

After revealing last week that she's currently fighting cancer, The Little Couple star Jen Arnold is opening up about her latest health challenge.

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

PICS: Adorable Tots: Celebs and Their Cute Kids!

Arnold explains that she first experienced symptoms while in India earlier this year with her husband Bill Klein and three-year-old son Will to pick up their two-year-old daughter Zoey, who they adopted from China. During the trip, Arnold said she experienced bleeding and decided to return home to Houston by herself for treatment after speaking with her OB-GYN.

"My initial thoughts were all about Zoey. But then the bleeding got worse and I was feeling light-headed. It was a hard decision, but I had to go home," she explained. Arnold, a neonatologist at Texas Children's Hospital, was then diagnosed with stage 3 choriocarcinoma, a rare cancer that began with a non-viable pregnancy (the embryo had no heartbeat) she suffered in September. 

RELATED: 'Little Couple' Star Reveals She Has Cancer

"The one time I get pregnant, I get cancer," said Arnold, who eventually had a hysterectomy after a cancerous mass in her uterus didn't initially respond to chemotherapy. Her doctor, Dr. Concepcion R. Diaz-Arrastia, has conducted extensive research and contacted specialists around the country to calculate the appropriate dosage of chemotherapy.

Arnold's cancer battle will be documented in future episodes of TLC's The Little Couple.

VIDEO: Little Couple Jen & Bill Adopt Daughter Zoey