Now, Elmore, 26, faces an agonizing decision. If she has surgery to remove the mass she could lose her baby, but if she doesn't she could become paralyzed.
Elmore, who had the weight loss surgery 13 months prior to the episode, has lost over 200 lbs. so far. But while she's putting in hard work at the gym and exercising with a personal trainer, she's still about 445 lbs.
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"I'm already a high-risk pregnancy, so a lot of things could go wrong," she says. "Having a baby is a dream come true, but I need to be able to take care of that baby. I don't understand why this is happening, and I don't know how I'm going to make this decision."
My 600-lb Life: Where Are They Now? airs Wednesday nights at 9 p.m. E.T./8 p.m. C.T. on TLC.