Miscarriages occur in approximately 10 percent of all clinically recognized pregnancies, the American Congress of Obstetricians and Gynecologists reported.

Common risk factors for naturally losing a baby during early pregnancy are advanced maternal age and prior early pregnancy loss. We’ve listed four additional risk factors that could surprise you.

Read: Trying To Get Pregnant Or Already There? Here Are 3 Ways You Can Minimize Risk Of Miscarriage

DAYLIGHT SAVINGS TIME

Women undergoing in vitro fertilization (IVF) who’ve previously experienced a pregnancy loss should avoid getting an embryo transfer close to Daylight Savings Time.

Researchers at Boston Medical Center just discovered that ladies who fall into these categories experience higher miscarriage rates after getting an embryo placed into their uterus if it has been less than 21 days since Daylight Savings. According to Medical XPress, these findings apply to both spring and summer clock changes.

YEAST INFECTION DRUG FLUCONAZOLE

Last April, the Food and Drug Administration (FDA) announced plans to reexamine the proposed link between a common yeast infection drug called fluconazole and an increased risk of miscarriage.

An extensive study from January 2016 reported a significant increased risk of miscarriage among those who had used the drug, Medical Daily previously reported. Researchers examined the medical records of Danish women who had taken fluconazole orally while 7 to 22 weeks pregnant between 1997 and 2013.

VITAMIN E DEFICIENCY

When a fetus isn’t getting enough vitamin E, the deficiency could cause a pregnant mother to miscarry because crucial body parts can’t develop without proper nutrients, according to a study in Free Radical Biology and Medicine.

Read: Miscarriage Cause May Be In Mother’s DNA: Early Pregnancy Loss In First Trimester Linked To Genetic Mutation

SECONDHAND SMOKE EXPOSURE

A 2014 study surveyed 80,762 women ages 50 to 79 and found that secondhand smoke exposure during pregnancy can increase the risk of miscarriage and stillbirth. These findings were previously reported by Medical Daily.

See Also:

After A Miscarriage: 3 Ways To Help Healing

Protein That Helps Placenta Develop May Also Contribute To Improved Treatments For Recurrent Miscarriage