More and more men are demanding DNA tests to prove paternity and one organization wants state lawmakers to look into the issue of what they call paternity fraud.
Marcus Matthews was a teenager when he got the news that a girl he'd had sex with was pregnant.
"We dated, had sex [and] she got pregnant," he told Nashville's News 2. "She said I was the father of her child. I questioned it because I wore a condom the one time we had sex."
Matthews demanded a paternity test and the result was what he knew to be true, he wasn't the father.
He soon realized he wasn't alone and there were other men dealing with the same issue. He wrote the book "I Am Not the Father," that shares what he went through.
Matthew said, "I think in today's world, we're more and more reluctant to have children begin their life on an untruth."
Matthews knows this is not a subject that people don't like to discuss openly, but he believed it was time.
"Until we really hold this discussion openly and not be dismissive about it, it's not going to get any better," he said. Tony Gottlieb is the president of DAD of Tennessee, Inc., an organization that fights for father's rights. He has come across several stories like Matthews.
"We don't let mothers leave the hospital with the wrong baby, why would we do it with fathers?" he asked.
Gottlieb and his organization would like to see status flags on birth certificates and DNA testing.
"Certainly when you have a child support order, it should be backed up with DNA, verification of paternity," he said.
Especially, according to Gottlieb, since federal courts have set a precedent that says men who pay child support but later discover they are not the biological father can not recoup any of the money they've paid out.
"It's not really right to have children not know their biological parent, not have access to their biological parent," said Gottlieb.
Some experts believe more fathers are seeking out paternity testing because the cost has been reduced drastically over the past few years.
Read more about Gottlieb's organization DAD of Tennessee, Inc. online at TNDads.org.