Pete Wentz is set to become a father for the second time.
The Fall Out Boy bass player and his model girlfriend Meagan Camper announced today (17.02.14) she is pregnant, with a photo on Instagram of them kissing and Pete, 34, touching her stomach.
Beside the photo, they wrote: "We're super excited to announce we're expecting a baby!"
Pete - who has five-year-old son Bronx Mowgli with his ex-wife, Ashlee Simpson - and Meagan have been hoping to start a family for a while.
A source told People.com: "They've been planning on this for a while. And they're really excited for Bronx to have a new little buddy.
"Meagan is a big sister and has a great relationship with Bronx. She's naturally maternal so this is perfect."
Pete and Meagan started dating in September 2011 and he recently said they are also hoping to get married soon.
He said: "We talk about [marriage] a lot. I feel really lucky. It's really interesting when you're in a relationship with somebody who's truly my best friend. I talk to her about everything.
"She will tell me when I'm being not so insane, and sometimes she's like, 'You're being a little bit insane.' So, it's very helpful."
Meanwhile, Ashlee recently announced her engagement to Diana Ross' son Evan, which happened during a New Year's holiday in Hawaii.

Jennifer Lopez' ex-husband is "good friends" with her current partner, Casper Smart.
Singer Marc Anthony - who split from Jennifer in July 2011 after seven years of marriage - says he has liked Casper, 26, from the first time he met him.
Marc joked of his 44-year-old ex: "I like them young, too! I'm not one to judge."
Speaking more seriously, he then added: "It's great. As a matter of fact, we were texting back and forth two days ago. We're actually really, really good friends. From the very beginning."
The star - who has five-year-old twins Max and Emme with Jennifer - also said he still cares for his ex-wife a great deal, and has "respect" for Casper.
Speaking on 'The Wendy Williams Show', he added: "When you love someone and you care for someone ... Jennifer and I - I don't say it lightly - we're great friends. You know, anybody that means anything to her means something to me. That's keeping it simple. Casper's a great guy. He's been great to my children. And I have nothing but respect for him, absolutely nothing but respect."
Marc, 45, recently split from his girlfriend of a year, Chloe Green, but admits he hopes to one day wed again.
He said: "I do [want to get married]. I believe in relationships. I believe that God has blessed me in so many ways. Material things to but so far. Success goes but so far. But when your house is empty and you don't have someone to invest in, if you don't have a witness, it's almost worthless."

Victoria Beckham was happiest when she lived in the US.
The singer-turned-fashion-designer and her family moved to California when her husband David went to play for soccer team LA Galaxy in 2007 and she found it the ideal place to grow her business.
She told Allure magazine: "Living in America for six years was the happiest I think I've ever been. It was much more accepting for a woman to have a career, as well as a man. And I loved it."
Victoria - who has children Brooklyn, 14, Romeo, 11, Cruz, eight, and two-year-old daughter Harper with David - says they are both supportive of each other's work and have a great home life.
She added: "David is the most wonderful man I have ever met. He's a fantastic father. He's incredibly talented, a wonderful husband. I supported him for many years, and he's proud of me. He supports me. We're very equal at home."
Victoria was a star in her own right as a member of girl group Spice Girls when she met David, and although it may have taken a long time to make the transition into fashion, after much hard work it has paid off.
She added: "I was never a natural. I got there in the end because I did believe that if you work hard enough, then you can achieve a lot."

Taylor Swift lost her virginity to Jake Gyllenhaal.
The 'We Are Never Ever Getting Back Together' star was initially waiting until she was married to have sex, but was so smitten with the 'Brokeback Mountain' star she went to bed with him after a few months of dating.
A source told RadarOnline.com: "She thought she was going to marry Jake, that's how in love she was with him."
However, things stated to go wrong a little later when Jake, 33, didn't make the star's 21st birthday party at her family home in Nashville, Tennessee, in December 2010.
The source added: "The day before - all was set - he was coming, no issues. But the day of, she doesn't hear from him at all. No texts, no calls.
"Taylor thought maybe he was planning some sort of surprise. Nope. He didn't show up and she locked herself in the bathroom and cried the entire night."
The source says their breakup shortly after inspired her last album, 'Red', in particular the track 'The Moment I Knew', which features the lyrics: "You should've been there, Should've burst through the door ... You said you'd be here."
The insider said: "Her breakup with Jake inspired every word of 'Red'. The song that specifically references this 'event' is 'The Moment I Knew.' They lyrics are all about her birthday party and Jake not showing up."
Despite the source's assertions, Taylor has previously insisted the track 'I Knew You Were Trouble' from the same album was about another of her ex-boyfriends, Harry Styles.
The 24-year-old star is famous for penning tracks about her famous exes, with her song 'Dear John' widely believed to be about her short-lived relationship with John Mayer. She has also dated Taylor Lautner and Joe Jonas.

Lil' Kim is having a baby boy.
The rapper announced she is to have her first child last week, and the baby's father, rapper Mr. Papers, says it will be a boy.
He told RadarOnline.com: "That's my baby... He'll be taken care of."
Kim - who is believed to be four-and-a-half months pregnant - had initially declined to say who the father was when she unveiled her baby bump at New York Fashion Week on February 12 but Mr. Papers says they are an item.
He added: "We together."
The rapper - whose real name is unknown - has previously said he plans for his son to enjoy the finer things in life.
He said: "That baby is going to be well taken care of... rocking Tom Ford, Versace - even the stroller will be designer."
'Thug Luv' star Kim, 39, has said she is "in heaven" over her pregnancy and has been getting cravings.
She said: "[I'm eating] Pizza! Everyday, pizza! A lot of vegetable pizza, because before I didn't eat vegetable pizza as much, but now I'm craving the vegetables."
Kim has also had to change her notoriously outrageous wardrobe to accommodate her growing bump.
She added: "I can't wear corsets and all my favourite sexy clothes [anymore]. But it's a very beautiful thing and I'm so thrilled."

Justin Bieber has been looking at an $11 million mansion in Atlanta.
The 'Confident' singer has been to view the huge property in the exclusive Buckhead district - where his mentor, Usher, lives - and is keen to move to the city to be close to its famous hip-hop scene.
The house the singer is interested in has seven bedrooms and is16,000 square feet in size, according to TMZ.com.
Justin, 19, is said to be selling his home in Calabasas, California, after falling out with his neighbours over his partying and loud music, which came to a head with an incident where one of his neighbour's houses was egged, causing up to $20,000 of damage. The matter is currently being investigated by the District Attorney and could result in charges brought against the star.
Criteria listed for any potential new home for Justin includes the property must not be visible from the street and must preferably have at least five acres around it and be a minimum of 10,000 square feet inside.
The singer is said to be looking at houses listed for between $4 and $10 million and is also searching for a second home in the Los Angeles area, as well as looking at 20 acre estates in the Hidden Valley area.
Justin recently paid a visit to Atlanta where he was seen partying with P. Diddy, T.I. and Rick Ross.
While in the city he wrote on Twitter: "Back in my second home. Good to be back. Focused on building up positive energy"
Atlanta was the first place Justin - who was raised in London, Ontario - lived when he moved to the US from Canada to embark on his music career.

Ed Sheeran celebrated his birthday with sausages and mash.
The 'Small Bump' singer turned 23 today (17.02.14) and marked the occasion by having a traditional British dinner and reminiscing on past times with his family.
He wrote on Twitter: "So many lovely birthday messages, sorry i can't reply to all of them. gonna eat sausage and mash and watch old family videos tonight x (sic)."
The singer-songwriter also showed off a few of the presents he'd been sent including a Huggable Pizza Cushion - shaped to look like the fast food treat - which he described as "possibly the coolest birthday present ever", a pin badge, a mug with "You Mug" written on it and a live DVD of boy band Busted.
Ed's friend and former tour buddy Taylor Swift also weighed in with a jokey birthday greeting, posting: "HAPPYBIRTHDAY @edsheeran! Now let's take a moment to reflect back on the best outfit you've ever worn (sic)."
With the post she included a picture of Ed - famed for almost always appearing in jeans and a T-shirt - wearing a shirt with a jumper knotted at the arms and worn around his neck.
Ed is currently enjoying some down time after touring the US with Taylor last year and recording his new album, which is set for release later in 2014.

Ariana Grande has recorded a track with Chris Brown.
The 'Baby I' singer has been in the studio with the controversial star - who is currently in rehab for anger management - and they announced their collaboration by sharing some of its lyrics on Twitter.
Chris tweeted: "I dug a single seed into the ground, I hope it grows,"
Ariana responded: "In a year or two if you're around, you'll see a rose."
When asked what her favourite song at the moment is by a fan, Ariana teased: "a song u haven't heard that is coming out in march (sic)."
The 20-year-old singer's manager, Scooter Braun, then confirmed the pair were teaming up, writing: "@ArianaGrande that was an amazing session. Excited for this incredible duet on the way 🙂 (sic)"
The song could help revitalise Chris' musical career, which has taken a back seat while he sorts out his personal issues, with his sixth album, 'X', still not on sale, despite four singles being released from it.
Chris, 24, has been on probation since his 2009 assault of then-girlfriend Rihanna, which was revoked last December, following an alleged assault in Washington D.C., a case which is still awaiting trial.
However, since attending rehab the 'Fine China' star's behaviour has improved, according to a report from his probation officer.
The report stated: "The clinical and medical team have witnessed very positive change in Mr. Brown since his psychotropic medications have been changed and he has been taken off medical marijuana. His ability to emotionally regulate himself has improved markedly."

Bradley Cooper didn't wear underwear when he met US President Barack Obama.
The 'Silver Linings Playbook' actor and his girlfriend, Suki Waterhouse, met the US premiere at a state dinner last week, but he says gaining weight for a new role left him with no room for boxer shorts.
Speaking to talk show host Ellen DeGeneres, he said: "I'm prepping for new movie and I'm trying to gain weight fast, I've gained about 15 pounds in four weeks and nothing fits me anymore. I wore the tuxedo I wore to the Golden Globes and I just sort of threw it in the bag and went to Washington D.C.
"I'm getting dressed, like, 10 minutes before I was supposed to go and literally the pants go up to like here [halfway up his thigh].
"So I had to go commando because there was no room at all. I did. I had to... So it was really great. And you have to walk up the stairs and it was a nightmare. But I made it through."
Bradley, 39, is nominated for Best Supporting Actor for his role in 'American Hustle' at the Oscars on March 2 - his second year nominated for the award in a row - and is having trouble deciding between taking his sister and his mother with him, so appealed to Ellen, the awards' host, for help.
He explained: "I'm trying to take more than one person. My sister's coming from North Carolina ... How can I [choose?]. Maybe they'll sit them at the top, maybe there's some seats at the top?"
Ellen initially sounded doubtful, but later added: "I'll see what I can do for you."

Miley Cyrus stuffed a fan's thong in her mouth while performing on Sunday night (16.12.14).
The 'Wrecking Ball' singer surprised the audience at her Bangerz Tour show in Tacoma, North West US, when she spotted the red undergarment thrown by a member of the audience then proceeded to wrap it around her microphone and put it in her mouth.
A stunned audience member wrote on twitter: "OMFG SOMEONE JUST THREW THEIR THONG ON STAGE AND MILEY PUT IT IN HER MOUTH!!!! (sic)"
The singer's wild antics didn't stop there and at another point in the show she straddled one of her female backing dancers, and writhed around her, wearing a bright red fluffy waistcoat.
The Bangerz Tour kicked off in Vancouver, Canada on February 14, and features a number of surreal moments including Miley riding a giant hot dog, rubbing her crotch and sucking on a foam finger, as well as plenty of her signature moves - sticking out her tongue and Twerking, the butt-shaking dance move she popularised last year.
Despite the controversies, Miley, 21, has said she wants the show to be "educational" for children.
She said: "I hope people open their minds and they look at my tour as something that I do feel is educational for kids.
"Because I think a lot of people aren't exposed to art enough and that's something that I had to learn about ... they pretty much teach you everything in the world as black and white and I want my fans to walk away knowing more about the art that inspires me."

Mariah Carey's daughter will appear on her new album.
The 'You're Mine (Eternal)' singer - who has two-year-old twins Moroccan and Monroe with husband Nick Cannon - has been recording her little girl "ad libbing" after she began mimicking the lyrics from one of her new songs, and says the clips will feature on her forthcoming LP.
She said: "It's a song that I wrote with Bryan-Michael Cox and Jermaine Dupri. There's a part that Jermaine says on the song that [the kids] loved, and Monroe started to say it.
"I kept having to get my iPhone and record her. So I have all these different takes of her saying things, singing things. Then I'd be like, 'This is your new ad lib -- learn it!' I have to make it fun for her."
The 'Hero' hitmaker insists both of her children are already showing signs of musical talent.
She told People: "Well, they started singing and talking simultaneously. It's hard to explain. That sounds like a lie, but it's true. They're both so musical."
And Mariah claims she is a "tough" mother who won't let her kids watch non-educational programming - unless she is relaxing and watching TV with them.
She said: "Their favourite thing is, 'Lie down, Mommy.' Meaning, 'Lay with me and watch a movie.' Because otherwise they have to watch Your Baby Can Read or something educational. I'm a tough task-master like that."

'Downton Abbey's' Laura Carmichael thinks her character is the Carrie Bradshaw of the 1920s.
The actress, who plays Lady Edith Crawley in the period drama, imagines her to be like Sarah Jessica Parker's 'Sex And The City' alter ego, because she writes a column for a newspaper about women's issues, despite it not being mentioned often in the show.
Laura told vulture.com: "I do love to think of her in my head as Carrie Bradshaw of the 20s. She's got a column on being a modern woman. Probably far less racy."
Although Edith's work isn't mentioned much on the show, it is important to Laura that it remains a part of the character.
She explained: "Her writing was still going on this season, and I kept checking with the producers to make sure of it. She would submit an article monthly to the newspaper, and it would have been this casual column. It was pretty common of women of her status."
Lady Edith has recently been left heartbroken in the show after falling for editor Michael Gregson, who disappeared after she found out she was pregnant.
When asked if the tone of her writing would have changed in her newspaper columns, Laura joked: "Can you imagine? 'I couldn't help but wonder... where has he gone?' It writes itself."
Laura says Lady Edith chooses what she wants rather than what is expected of her and she is proud of her character
She added: "I love that Edith has become very brave. She's forced to along her journey, being left at the altar and such. I think she would have been the most traditional of all the daughters.
"In the end, life was harder on her and it falls on her to become a professional woman and write for a newspaper and find a different path for herself. That's really cool."