It’s not unusual for a woman to be concerned about her weight during pregnancy. However, when she unexpectedly gains 85 pounds, a woman can’t help but notice.
While a woman should discuss weight gain amounts with her physician to determine what is right for her, the Mayo Clinic reports that a woman who is of normal weight before pregnancy should gain 25 to 35 pounds during her pregnancy.
If she is underweight beforehand, she should gain 28 to 40 pounds. If a woman is overweight when she gets pregnant, she should probably gain only 15 to 25 pounds in total. If she's obese, meaning she has a BMI of 30 or higher, she should only gain 11 to 20 pounds.
For 43-year-old model Molly Sims, though, it was more than pregnancy that was causing her 85 pound weight gain, but it took time for doctors to figure it out.
Here is Sims in 2011, before her first pregnancy:
Pictured below is Sims in 2012, while pregnant with her first child:
Sims told People's Mom Talk that it wasn't until after giving birth to her first child that she found out why she gained so much weight during her pregnancy:
“No one tells you what’s going to happen. With my first pregnancy, I ended up gaining 85 pounds and had a bad thyroid problem that no one diagnosed throughout the whole pregnancy until four months later.”
OB/GYN and Women's Health Expert Sherry Ross, MD explained to Cafe Mom that though thyroid disease is common in women, it's surprising that no tests are recommended for it when a woman gets pregnant.
According to Ross, overactive or hyperthyroidism occurs in one out of 500 pregnancies and underactive or hypothyroidism occurs in four out of 1,000 pregnancies.
Untreated thyroid disease during pregnancy can cause a number of problems, including preeclampsia, miscarriage, low birth weight, and problems with baby's development.
Common symptoms of thyroid disease, according to the Office of Women's Health, U.S. Department of Health and Human Services, include muscle weakness, feeling hot or cold when others don't, unexplained weight gain or loss, constipation or diarrhea, changes in mood such as irritability or depression, and thinning hair.
Ross recommends that all women be tested before conceiving and then approximately every six weeks during pregnancy, to account for fluctuating hormone levels.
As for Sims, her pregnancy and thyroid story isn't over yet. Now a mom to four-year-old Brooks Alan and seventeen-month-old Scarlett May:
...Sims is expecting child number three:
Fortunately for Sims and others with the condition, there is medication that can be taken to help with thyroid disease, and it is even safe to take during pregnancy.