CLEVELAND -- Some parents can't wait to find out the sex of their baby. 5 On Your Side health team reporter Lee Jordan said that using a gender test could cost you in the long run.

Danielle Hardey wanted to know the sex of her unborn baby earlier than an ultrasound could show it.

She bought Acu-Gen's baby gender mentor test online. For $275, the test claims it can tell you the sex of your baby five weeks after conception, with a 99.9 percent accuracy rate.

Hardey's gender test said she was having a boy.

The problem is that repeated ultrasounds -- seven of them, in fact -- said it's a girl. And so did the doctor who delivered Sarah Kate.

"Women are saying, 'Wow that's really neat, I'm going to get that.' And every time they sell a test, that woman is potentially putting herself and her family at risk for heartbreak," Hardey said.

Trinity Lazanis, of Jefferson, Ohio, took the test. Her results said, "it's a boy." But after seeing more than 80 women in an online forum post their incorrect results, she had no confidence in her results.

"Absolutely none. I thought I was having a boy. I had a couple weeks to bond with a boy, now I have no idea if he exists," Lazanis said.

In fact, more than a dozen women have filed complaints with the Federal Trade Commission, claiming the gender tests were wrong. Many accuse the company of not honoring the money back guarantee, NewsChannel5 reported.

Dr. James Liu, chairman of obstetrics for UniversityHospitals MacDonald Hospital for women said while it's possible for early, sensitive tests to pick up fetal cells in the mother's blood, it's very rare.

"The problem is that in very early pregnancy, few if any fetal cells are in mother's blood. So, it's much later you would see that," Liu said.

Experts said the 99 percent accuracy rate could be blamed on marketing.

"The claims are not being verified by anyone other than person providing the marketing for this," Liu said.

A 5 On Your Side investigation discovered that no one regulates at-home tests.

The Food and Drug Administration doesn't consider gender a medical condition. And the agency that regulates clinical labs doesn't consider this test a "medical test," Jordan reported.

NewsChannel5 said that it seems Acu-Gen's lab isn't regulated at all.

Erin Rivera said Acu-Gen's president Chang Wang gave her a medical diagnosis. She sent in her blood sample and the gender was right, but then she got a disturbing call.

"He said, 'Well, I would recommend you calling your doctor and getting some genetic test done because we detected a high amount of material in your specimen,'" Rivera said.

A high amount of genetic material that could indicate chromosonal abnormalities with her baby, Jordan reported. Yet her ultrasound showed no such problem.

"Pregnant women are getting information they didn't ask for and we have no assurance those test results are accurate," said geneticist Kathy Hudson.

Hudson, a geneticist with Johns Hopkins University said the government needs more oversight of products like the baby gender test. And Liu said consumers need to be wary.

"Use common sense, if not sophsticated in biological knowledge. Knowing that test is what's advertised, ask your physician, obstetrician to see what they think in terms of its potential," Hudson said.

Despite having no published data to back up the accuracy of his test, Wang stands by his work.

"We don't mistakes. Period," Wang said.

But a growing number of women would disagree.

"When you can't trust what you've been told, I feel I got ripped of," Hardey said.

Several law enforcement agencies are taking note of Acu-Gen's mistakes. The Illinois Attorney General is investigating consumer fraud allegations against the company. And the state of New York said Acu-Gen needs to file for a proper permit or stop taking samples from their residents.