This isn’t the first time 19-year-old Shannon Guthrie, is expecting a new baby, but it is the first time she’ll be cashing in on her positive pregnancy test.

“I took a pregnancy test and it was positive. So I posted it on Craigslist to see if anyone would possibly want to buy it,” said Guthrie.

Fifteen minutes later, the Seffner mother said she had a buyer.

“I don't know why anyone would want to buy a pregnancy test. I can't think of any good reasons why anyone would want to. I can think of a few bad ones,” said Guthrie.

There is a decent demand for positive tests across the country. Some women are buying them as a gag gift, others worry tests will be used to force men into popping the question, or even extort money.

“I’m doing it to hopefully help people with gag gifts and jokes and stuff. I’m hoping people aren’t doing it to trap men, or anything negative. But if they are it's not exactly my business,” said Guthrie.

Guthrie said she needs the money too much to care what anyone does with her pregnancy tests. She says any money she makes will pay for doctor bills and her upcoming wedding.

“I’m not drug dealing, I'm just pregnancy test dealing,” she said.

As long as it continues to be legal, Guthrie said she will simply make them to order.

“If I get a text message, I will just take another test and sell it.”

According to the Hillsborough County Sheriffs Office, the act of buying and selling the test on Craigslist is not against the law. But if anyone tries to use the test to extort money, that’s where the legal trouble could begin.