Breathe easy, James Deen ... Farrah Abraham is NOT PREGNANT ... not even a little bit, as far as she knows.

The "Teen Mom"-slash-porn-star pre-taped an episode of upcoming conflict resolution talk show "The Test," where producers convinced her to take one -- and it was NEGATIVE. (Trust us, that's a POSITIVE).

TMZ broke the story ... Abraham said she missed her period after making her porno with Deen. She was photographed while plunking down cash for an EPT at the drug store.

But Farrah told "The Test" host Kirk Fox that she never took that test (her explanation was WAY too convoluted to make any sense ... so we're going with "not enough cameras around").

We're told Farrah reacted indifferently. We can relate.

Justin Bieber could have a brand new porn-star neighbor in his ultra-exclusive L.A. community -- 'cause TMZ has learned Farrah Abraham has her eye on a $3 million pad right around the corner from the singer.

We've learned ... the star of "Back Door Teen Mom" was on the mansion hunt this weekend in The Oaks in Calabasas -- an expensive gated community home to stars like Kourtney Kardashian, Travis Barker, Romeo, Keyshawn Johnson, Shanna Moakler and others.

One of the homes that tickled Farrah's fancy was a 4,851 square feet pad with 5 bedrooms, 6 baths ... and a $3,299,900 price tag.

It's unclear if Farrah has already put down an offer ... but with the 6-figures she made from the tape, she could definitely afford the down payment.

The monthly mortgage payments, on the other hand ... let's just say she might need to re-open the back door if she plans on staying here a while.

Rocky's boxing gloves ... Dorothy's ruby slippers ... Indiana Jones' bullwhip ... the bikini Farrah Abraham wore on the cover of her sex tape -- one of these pieces of cinema history CAN BE YOURS!!! --- take a guess which.

Vivid Entertainment -- the porn studio behind the release of "Farrah Superstar: Backdoor Teen Mom" -- listed Farrah's pink crystal-encrusted two-piece on eBay at midnight ... and bids started at $500.

It's pretty hilarious ... the listing advertises the Poolside Collection bikini as "used" -- we're told that means exactly what you think it means: the bikini wasn't washed since Farrah wore it.  Think Monica Lewinsky and The Gap.

In fact, we're told the bikini shows overt signs of wear, including fake tan stains and glitter from Farrah's body lotion.

As the listing goes ... "Farrah's bikini ... straight off Farrah's body and into your hands."

As if your hands won't already be busy enough.

Newly minted porn star Farrah Abraham is so worried James Deen knocked her up while filming their infamous sex tape ... she peed on a stick.

Sources close to Farrah tell TMZ ... the former "Teen Mom" star hadn't had sex in more than a year before James got her ... and the duo didn't wear condoms while filming ... and Farrah wasn't on birth control. Basically all the makings for an after school special.

We're told Farrah recently missed her period and started freaking out, thinking she was growing a little porn spawn.  So she went shopping for a pregnancy test at her local pharmacy.

We're going to go to out on a limb that she's NOT pregnant ... for 2 reasons.

1.  We've seen the tape, and you don't get pregnant THAT way.

2. It's not that James' parting gift went IN her as much as ON her.

Farrah Abraham got into a heated exchange with an airport employee today ... which she claims only ended after airport cops showed up ... and get this, it was all over an over-sized duffel bag.

The "Teen Mom" tells TMZ ... she showed up to LAX hours ago with an extra large carry-on bag -- but was informed by American Airlines personnel she couldn't go through security until she checked the bag.

Farrah says she agreed, but says the woman was rude to her regardless, and the two began arguing. That's when Farrah says she told the lady she was acting like "trash" and asked to speak to her supervisor ... but claims the lady called airport police instead.

Farrah says she explained the situation to cops, but they weren't having it and told her to be more respectful. Cooler heads eventually prevailed and Farrah proceeded to make her flight.

The newly-minted porn star tweeted angrily afterwards, "I thought American Airlines was good apparently they need better customer service, never flying with them again:) #CallThePolice."

For what it's worth ...TSA had no record of the incident. We also called American Airlines, but so far no word back.

But here's how it may have looked:

Lil Wayne says he doesn't know what it's like to experience a seizure ... because every time he has one, he completely blacks out.

Wayne -- along with his mentor Birdman -- sat with Sway from MTV and explained how his seizure episodes always strike without warning.

"So everybody knows, I don't know that it happens," ... adding, "I go to sleep and wake up in the hospital."

 "I don't feel anything. I just hope it stops happening."

Wayne says he's struggled with headache issues in the past ... but he hasn't experienced any head pain in the moments before the seizures strike.

Wayne has suffered multiple seizures over the past few months ... and was hospitalized for several days in L.A. in March after a series of very serious episodes.

Weezy says the doctor has given him some tips to stay healthy ... and so far, the rapper says he's following orders.

Farrah Abraham clearly has STDs on the brain ... 'cause that's all she wanted to talk about last night.

The "Teen Mom" star was outside Katsuya in Hollywood ... when we asked about her new 6-figure endorsement deal for a weight loss product.

The fun part -- we asked if she was present for lab testing (on the product) ... but Farrah thought we were talkin' about her vagina. She was very forthcoming, as usual.

Still, one question remains -- who's watching her kid?

Farrah Abraham is a backdoor crowd pleaser for sure ... because there was such intense, pent-up interest in her porn video, it crashed Vivid's site.

According to our porn sources ... Farrah's 70-minute debut, "Backdoor Teen Mom," lured in more than 2 million visitors in just 12 hours Monday ... annihilating the record previously held by Kim K and Ray J -- which attracted 600,000 during the same time frame.

Farrah swamped Vivid's servers so hard ... the site went down Monday morning for 9 minutes ... which is more than enough time to satisfy most of the buyers -- trust us ...

Vivid honchos tell us they were able to access additional servers to handle, as they put it, "the immense load."

For the record ... Farrah also handled the immense load.

Farrah Abraham is following the Kim Kardashian Steps to Fame Playbook to perfection -- TMZ has learned the newly-minted porn star has just inked her first endorsement deal ... and the check has its fair share of zeroes at the end of it.

The Backdoor Teen Mom has signed on to endorse a product called Raspberry Tones ... which bills itself as a "diet and fat-loss" pill. We're told it wasn't the sex tape that caught the company's eye (ok, maybe a little) but rather the bikini pics of Farrah that surfaced last month. 

According to our sources, Farrah loved the idea of endorsing a health product and couldn't pass up the payday ... which, we're told, is somewhere in the low six figures.

A rep for the company tells TMZ, "Farrah represents a growing audience of young, active people who take care of their health and use only natural products to look and feel great. Farrah looks fit and fabulous, and takes care of her body, and a lot of health-conscious people can look up to that."

Taking pills isn't really Farrah's strong suit, but you can't get pregnant if you skip one of these ... so she'll be fine.

The porn honcho behind the release of "Teen Mom" Farrah Abraham's sex tape is giving MTV -- which carries the show -- fair warning ... the video will be released to the world on Monday ... unless they come up with a really good legal reason to keep it under wraps.

Vivid Entertainment Prez Steve Hirsch is downright diabolical ... sending the network a "put-up-or-shut-up" ultimatum just days before the tape goes wide.   Hirsch wants to know if there's something in Farrah's contract that would prohibit her from doing her backdoor tricks with porn star James Deen.

So the clock -- we said clock -- is ticking as the world waits to watch Farrah take a licking.

Good News: "Buckwild" star Salwa Amin is getting out of jail!!!

Bad News: She's only being TEMPORARILY released so she can go to an inpatient rehab for opiates.

Worse News: After she completes rehab, the judge is making her go back to jail.

Old News: Salwa was locked up without bail in West Virginia on March 27, when a court-ordered drug test turned up oxycodone and morphine.

On Monday, a West Virginia court ordered her to an inpatient treatment program ... it's not clear for how long.

Salwa was originally arrested in a February drug raid at her friend's house. Officers allegedly turned up oxycodone and heroin and booked them on counts of felony drug possession with intent to deliver ... that's why she was ordered to drug-test in the first place.

Once she's done with rehab, Salwa is coming STRAIGHT BACK to jail to await a court date regarding the original drug charges ... and that date hasn't been set yet.