Is The Chinese Gender Predictor Test Accurate? It's Not Exactly A Fool-Proof Method To Determine Sex

Ad failed to load

When you are pregnant, or trying to get pregnant, it's hard to not think about the baby you're having. What will they be like, what will they look like, and of course, the question you're most asked — is it a boy or a girl? There are plenty of old wives' tales when it comes to sex prediction, but really, there's no method that's 100 percent accurate other than actually meeting your baby at birth. Some people swear by things like the Chinese Gender Predictor Test, but is the Chinese Gender Predictor Test accurate?

According to Parents, the Chinese Gender Predictor Test was discovered over 700 years ago and uses a mother's lunar age and month of conception to predict whether their baby will be a boy or girl. As noted by Huffington Post, the test is said to have been used by Chinese royalty in order to ensure enough heirs to the royal bloodline and that the test still exists in Bejing's Institute of Science. Various Chinese calendar websites note that the accuracy rate for the Chinese Gender Predictor Test can range anywhere from 85 to 93 percent, but a study out of the University of Michigan claims it only has a 50 percent accuracy rate.

Ad failed to load

The University of Michigan noted that while analyzing data regarding the validity of the Chinese Gender Prediction Test, they attempted to find a correlation between the chart and the results of about 2.8 million births. There wasn't any. It's about as accurate as flipping a coin, noted lead researcher, Dr. Eduardo Villamor.

Interestingly enough, when I attempted the Chinese Gender Predictor Test on my own kids' births, it was accurate on both counts. When I input my age at conception and month of conception for my boys' birth dates, the test showed that I had a boy each time. Obviously, this is likely a stroke of pure coincidence, but still fun to note.

There are many different old wives' tales when it comes to at-home sex prediction, and if nothing else, they can be fun to experiment with while you wait for your little one to arrive (as long as you don't take the results too seriously). A lot of parents-to-be love to try multiple methods of prediction and weigh the results against one another to try to guess the sex of their babies.

Ad failed to load

Some of these prediction tests are based on how mom is feeling, how she is carrying her pregnancy, what she's craving, what her skin is like or, interestingly enough, how her urine interacts with things like the juice of a red cabbage or Drano (to each their own, right?), reported Babble. According to Parenting, there is also a legend that suggests that baby's in utero heartbeat can even predict gender (140+ beats per minute indicates a girl, and below 140, a boy).


And, of course, your friends and family will always have their own opinions on whether you are having a boy or a girl. Some couples even start a betting pool with their friends to keep things light and fun while waiting for baby. With the continuing popularity of gender reveals, it can be a fun way to get everyone excited for the big news.

Ad failed to load

Recently, actual sex-prediction tests (usually urine or blood-based) have been appearing on drugstore shelves. Most experts or healthcare providers advise against putting much weight on results from these though. According to Parents, the urine-based ones are particularly scammy, because there are no detectable sex hormones in pregnant women's urine at that point. And, though doctor-provided blood tests can predict gender as early as seven weeks pregnant, the quality, and therefore accuracy, of home-based blood tests to predict gender is subpar.

Obviously any given at-home gender prediction "test" can only really have a 50 percent rate of success, and that is only because there is a 50/50 chance that your baby will be either a boy or a girl. There have been countless tales of friends of friends whose baby turned out to be the opposite of what was planned for, so really, nature's got this one on us. Save for a doctor-approved blood test or ultrasound — everything else is just a guess.

Check out Romper's new video series, Bearing The Motherload, where disagreeing parents from different sides of an issue sit down with a mediator and talk about how to support (and not judge) each other’s parenting perspectives. New episodes air Mondays on Facebook.

Ad failed to load
Ad failed to load
Must Reads

The Reason Why Babies Smile At You Will Seriously Make You Smile

Whether you're currently the recipient of your own baby's sweet smiles or you just seem to be a magnet for baby grins in general, you might find yourself wondering why babies are always smiling at you. Sure, you could be a 'smile whisperer' but scien…
By Kate Miller

8 Ways Your Baby Is Trying To Say That, Yes, You Are Their Favorite

For a baby to show a preference for a specific person is not only normal, but an essential part of their development. Babies need to form strong attachments to their caregivers for their emotional, social, and physical wellbeing. Usually, but not alw…
By Kimmie Fink

10 Reasons Why I Won't Apologize For Giving My Toddler A Pacifier

My first child had no interest in a pacifier. I tried a couple times to get him to take one, but he always spat them out and gave me an incredulous, judgmental look. But my second? It was love at first suckle. And after a while, the incredulous, judg…
By Jamie Kenney

Being A Dog Parent Prepared Me For Having A Baby, Really

I’ve always wanted kids; I was never as sure about raising a puppy. Then I spent six months living with someone who brought home an eight-week-old golden retriever puppy, and I see no way to make it out of that experience claiming not to love dogs. I…
By Heather Caplan

20 Of The Most Popular Unisex Names Of All Time, That You'll Be Hearing More Of For Sure

You might think of unisex names as a fairly recent trend, but the truth is these versatile monikers have been commonly used throughout history (well, some more commonly than others). That's why the team over at recently compiled a list of t…
By Jacqueline Burt Cote

How To Have A Date Night With No Babysitter, Because It's Easier Than You Think

After having children, many couples feel that their love lives immediately go out the window, but it's so important to make your romantic life a priority so both you and your partner can be the best versions of yourselves you can be. As we all know, …
By Abi Berwager Schreier

9 Ways Baby No. 3 Made My Family Feel Complete

My husband and I decided to have another baby right after we got married and, well, we had no idea what we were getting into. I got pregnant right away, endured a high-risk pregnancy, and, before I knew it, my third baby had arrived. Together, we emb…
By Steph Montgomery

8 Stereotypes About New Dads That Are *Totally* True

Much like new mothers, new fathers have a lot on their plate. Parenting can be scary and complex, especially at first and regardless of your gender. People want to do right by their kids, after all. And since all new parents are a hot mess, dads are …
By Priscilla Blossom

8 Differences Between Being Pregnant In Your 20s Vs 30s, According To Science

Whether you're planning a pregnancy, or just thinking about your future family, it's typical to think about things like child-spacing, how many kids you want, and when to start trying to conceive. When making your pro/con list, you might also conside…
By Steph Montgomery

16 Moms Share Remedies For Their Most Intense Chocolate Cravings During Pregnancy

For better or worse, pregnancy is usually synonymous with odd cravings. Sure, there are the stereotypical combos like pickles and ice cream that plague gestating women the world over, but there are other mind-boggling combinations, too, including but…
By Candace Ganger

Putting Sunscreen On Your Kid Doesn't Have To Be A Fight — Here's How To Do It

I am almost translucent, so me and sunscreen are basically besties at this point. Even though my children are beautifully deep brown thanks to my husband's genetics, I still slather them like biscuits being buttered because I refuse to take risks wit…
By Cat Bowen

7 Things A Mom Really Means When She Says She Doesn't Want Anything On Mother's Day

Every year my family asks me what I want for Mother's Day, and every single year I tell them the same thing: Nothing. So, by now, they know that when I say "nothing" I absolutely do not mean "nothing." In fact, there are more than a few things a mom …
By Candace Ganger

19 Moms Share The Way They Cured Their Pregnancy Comfort Food Cravings

I was obnoxiously sick during the first trimester with, "lucky" for me, both of my pregnancies. For the first three months I lived on saltines, lemonade, and fresh bread. Once I was able to eat, however, all I wanted was savory and sweet comfort food…
By Dina Leygerman

8 Fascinating Facts About Babies Born In May, The Luckiest Month Of All

The height of all things fresh and springy, May is an excellent month to have a baby. It's a time of growth, graduations, and outdoor celebrations. And these fascinating facts about May babies will give you more reasons than ever to appreciate childr…
By Lindsay E. Mack

I Used To Judge Formula-Feeding Moms — Until I Became One

The other patrons in the hip Brooklyn restaurant probably couldn’t care less what I was feeding my baby, but I’ll always remember the shame I felt as I quickly mixed up his bottle of formula in front of them. I admitted to my childless friend that I …
By Katherine Martinelli

7 White Lies It’s Necessary To Tell To Keep Your Relationship Healthy

Telling lots of lies typically isn't associated with a healthy, strong, lasting relationship, and that's still certainly true, but not all lies are exactly the same. Though you've probably heard from someone at least once or twice that the lie they t…
By Lauren Schumacker

The Skinny Jeans That Saved Me Postpartum

Accepting my post-pregnancy body is hands-down one of the most difficult things I’ve ever done. It’s something that I still work on every single day. During my first pregnancy, I was 20 years old, so I managed to bounce back quickly. In fact, I dropp…
By Allison Cooper

7 Ways Your Baby Is Trying To Say They Feel Safe

In those first weeks of new motherhood, it can feel like you need an interpreter for your newborn. With their limited means of communication, figuring out what message your baby is trying to get across to you can be a challenge. With time, however, y…
By Kimmie Fink

Here's Why Dogs Are Obsessed With Babies' Poop, According To Science

Most family dogs seem to understand babies, and they're more than happy to make friends with the newest member of the pack. It's adorable... for the most part and until you go to change your little one's diaper. Suddenly, you're wondering why dogs ar…
By Lindsay E. Mack

6 Signs You're Meant To Have A Big Age Gap Between Kids

There's a five year age difference between my two children, to the day. Their age gap wasn't planned but, for a variety of reasons, works well for our family. And since I was so focused on having a second baby, I totally overlooked the signs that wou…
By Candace Ganger

My Dog Knew I Was Pregnant Before My Family Did

Growing up, I was 100 percent sure I'd be a mom one day. To a dog, that is. My baby plans came later. And once my husband and I were sure we wanted both a dog and a baby, we'd add to our joint dog-and-baby name list over Sunday brunch or on date nigh…
By Melissa Mills