While Tammy's weight has fluctuated here and there since 1000-Lb Sisters began in January 2020, she's remained in the 600-pound vicinity. Her lack of progress (or rather regress) even forced bariatric surgeon Dr. Charles Procter to drop her as a patient, referring her to one of his bariatric surgery colleagues in Kentucky.

According to the American College of Obstetricians and Gynecologists, Tammy would be at risk for many serious conditions if she got pregnant right now. Obesity during pregnancy puts you at risk for gestational hypertension, gestational diabetes, and obstructive sleep apnea, to name a few.

More specifically, an obese pregnant person is at risk of developing preeclampsia, a dangerous form of gestational hypertension.

"This condition can cause the woman's kidneys and liver to fail. In rare cases, seizures, heart attack, and stroke can happen. Other risks include problems with the placenta and growth problems for the fetus," the ACOG says. Even if Tammy wished to become a biological mother, she'd need to greatly improve her health before doing so.

Season 3 episodes of 1000-Lb Sisters air Mondays at 10 p.m. EST on TLC.