Eighty-four percent of expectant mothers doubted the health choices they made during pregnancy, according to a new survey.

In fact, despite many making modifications such as changing what they ate (49 percent), what household cleaning supplies they used (27 percent) and which skin care products they used (22 percent), pregnant mothers were still regularly unsure of themselves.

The study of 2,000 mothers found that the “rules” of pregnancy have changed over time, which leaves soon-to-be moms having to decode the latest news and advice to determine how to best manage their health.

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Conducted by OnePoll in conjunction with Monistat, the study looked into the pregnancy advice given to expectant mothers and how that’s evolved over generations.

Results showed that 3 in 5 think that they handled their own pregnancy very differently to how their mothers actually handled their pregnancies.

“With new advancements in medical research each year, health guidelines for pregnancy are often changing and that can lead to confusion for mom, especially when decades of great moms before her likely weren’t privy to the latest guidance,” Dr. Alyssa Dweck, an OB-GYN, author, women’s health expert and MONISTAT spokeswoman, said. “Of course, there are core guidelines that have stood the test of decades, but as the years progress, there are discernible generational shifts in pregnancy practices given the new information available."

With so much to worry about during pregnancy, it is not surprising that women are concerned about the choices they have to make about their health.

More than a quarter admitted that they received differing advice from other women and 38 percent noted that the information provided by their doctors was significantly different from what their mothers were told when pregnant.

When it comes to advice, the study also found that women are more open to taking advice from strangers, with over 66 percent of women aged 18-24 getting information from online pregnancy forums.

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That being said, there is plenty of unsolicited advice that pregnant women face regularly. In fact, more than a third (36 percent) of expectant mothers felt there was an overabundance of information shared during pregnancy.

A further 84 percent of expectant mothers admit to getting unsolicited advice from family and friends.

The number one nugget of advice that surprised older mothers that modern expectant women get is to avoid cutting your hair — with 42 percent of those surveyed revealing this was advice they were given while pregnant.

While 33 percent were told to eliminate cold cuts from their diets another 33 percent were told to avoid eating a new vegetable that they’ve never tried.

Other things that pregnant women were told to avoid include touching cats (32 percent), laying flat on their backs (29 percent), dying their hair (25 percent) and eating sweets (23 percent).

One health decision that many pregnant women had to face was how to treat a yeast infection, which is as much as 10 times more likely to occur during pregnancy.

Shockingly, the survey revealed that 54 percent of women were not aware that there was a potential health risk when taking the leading prescription pill (fluconazole) to treat yeast infections during pregnancy, and nearly half of these women actually took the pill to treat their yeast infections while pregnant.

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“Seven-day topical treatments are the CDC’s only recommended form of yeast infection treatment in pregnant women, and MONISTAT relieves symptoms four times faster than the prescription oral pill. If you are pregnant, you should consult your health care professional prior to using any medication,” Dweck said.

TOP 20 PIECES OF ADVICE THAT SURPRISED OLDER GENERATIONS

Don’t cut your hair: 42 percent

Eliminate cold cuts from your diet: 33 percent

Avoid eating a new vegetable you’ve never tried: 33 percent

Avoid touching cats: 32 percent

Don’t lay flat on your back 29 percent

Don’t dye your hair: 25 percent

Avoid eating sweets: 23 percent

Avoid changing cat litter: 21 percent

Avoid unpasteurized dairy: 20 percent

Don’t use ibuprofen: 17 percent

Keep a food diary to ensure you are keeping up with daily requirements: 17 percent

Avoid uncooked eggs: 16 percent

Limit coffee intake: 15 percent

Avoid saunas: 15 percent

Add 300-500 calories to your diet a day: 15 percent

Avoid seafood that is high in mercury: 15 percent

Avoid raw fish: 14 percent

Don’t drink alcohol: 12 percent

Avoid flying on an airplane during third trimester: 12 percent

Join a prenatal yoga or exercise class: 12 percent

TOP 10 DOCTOR-GIVEN PREGNANCY ADVICE

Take a prenatal vitamin: 64 percent

Don’t drink alcohol: 59 percent

Don’t smoke: 57 percent

Rest when you can/nap: 51 percent

Minimize stress: 46 percent

Exercise: 41 percent

Have a car seat prepared for when baby arrives: 37 percent

Avoid saunas: 27 percent

Don’t use ibuprofen: 27 percent

Stop changing cat litter: 25 percent

TOP 10 PREGNANCY WORRIES

The health of my baby: 62 percent

Preparing for the pain of childbirth: 46 percent

Finances: 43 percent

Being prepared to care for a baby: 45 percent

My own health: 43 percent

Not getting sick while pregnant: 36 percent

Making it to the hospital in time: 34 percent

Making sure I was eating enough: 31 percent

Following the "rules" of pregnancy from doctor: 30 percent

Baby proofing my home: 28 percent

TOP 10 PREGNANCY SURPRISES

Food cravings: 34 percent

My feet swelling: 33 percent

Morning sickness: 33 percent

Stretch marks: 32 percent

Unexpected emotions: 32 percent

Heartburn: 32 percent

Sore breasts: 31 percent

Frequent urination: 31 percent

Difficulty sleeping: 31 percent

Frequent discomforts: 25 percent

TOP FIVE PEOPLE WHO GAVE MOST USEFUL ADVICE

Doctors: 60 percent

My mom: 48 percent

Nurses: 33 percent

My friends who have gone through a pregnancy: 30 percent

Other female relatives: 20 percent