Everything is for sale on Craigslist. Even positive pregnancy tests.

"I am providing a product in which the consumer is able to purchase positive pregnancy tests for your own use."

That's part of the text of one of the most unusual Craigslist ads you'll ever run across.

A woman in the Jacksonville, Florida, area posted on Craigslist that "Very self explanatory I am going on 6 months. Whether you are using it for your own amusement such as a prank, or to blackmail the CEO of Apple who you are having an affair with, I don't care at all."

There are two posts in Jacksonville's listing for "services," and both appear to be from the same poster.

"Do not contact me if you are going to be cheap and difficult," one of the posts said. "Contact me by text and you will get an immediate response.

"I travel to the majority of my regular clients so "I'm very flexible with meeting places. If you have any questions feel free to ask."

Fake pregnancy tests, marketed as "Prank" pregnancy tests, are nothing new. A quick check of Amazon and eBay finds them easily available, with Amazon selling them for $8.

"Fraud is the first thing that comes to my mind," Action News Jax law and safety expert Dale Carson said.

Carson said this type of transaction falls into a legal gray area since it’s not illegal to sell urine, but the buyer could be committing fraud.

"This is the kind of thing that makes legislators go 'we need to pass a law that says you can't do this,'" Carson said

After Action News Jax found the post, we replied to the ad, undercover, asking to meet up with the pregnant woman offering up her services for $30 a pop.

After she agreed, we went to the nearest pharmacy and picked up a pregnancy test.

Our Action News Jax intern met up with the woman and after using the bathroom, she indeed handed over a positive test.

The woman, who didn’t want to be identified, said she got into this after looking online for a job she could do while she was pregnant.

"I saw from other women and their experiences that it's very easy," the woman said.

After her first post to Craigslist, she said the money started flowing.

"Two hundred dollars in a day, off something I have to do no matter what," the woman said.

This woman isn’t the first person to sell a positive pregnancy test online; it’s a trend that’s been going on for years.

Some women advertise it to simply play a prank or as a way to get a guy to pop the question.

"I don't see how you could trap a man," the woman said.

But to this woman, it’s just a job, which is helping her pay for her future.

"Me being in college working on a bachelor's and needing all this money to pay for a degree, this was a no-brainer," the woman said.

The woman said dozens of people contact her to meet up and some even travel from as far as Orlando, but she said she never asks what they do with the pregnancy tests.