Tiffany Trump and Michael Boulos are expecting their first child. Here's a timeline of their relationship.

July 2018: Tiffany Trump and Michael Boulos began dating after meeting at Lindsay Lohan's beach club in Mykonos, Greece, according to People magazine.

Boulos grew up in Lagos, Nigeria, where his family owns a multibillion-dollar conglomerate of companies. He was studying project management at City, University of London, when he met Tiffany, then a law student at Georgetown, on vacation in Mykonos.

"I wasn't there when they met," Lohan told People magazine at the premiere party for her MTV series, "Lindsay Lohan's Beach Club," in 2019, adding that she knew both Tiffany Trump and Boulos but didn't know exactly how they met.

September 2018: They made their first public appearance together at New York Fashion Week.

Boulos joined Trump in the front row of the Taoray Wang show during New York Fashion Week.

November 2018: Page Six reported that the two were dating, and that Tiffany Trump had introduced Boulos to her family over Thanksgiving at Mar-a-Lago.

"Tiffany is happy she has so far been able to keep things with Michael under the radar," an unnamed source told Page Six. "But she introduced him to her family at Thanksgiving, and he comes across as a very intelligent young man from a great family. There was no mention of the president's unfortunate comment about African nations."

In January 2018, Donald Trump reportedly referred to African nations and Haiti using an expletive during a meeting with lawmakers. He denied the reports, writing on X that the language he used was "tough" but that the widely reported remark was "not the language used."

January 2019: Boulos made his first appearance on her Instagram.

Trump posted an Instagram photo of her and Boulos in the Red Room of the White House at Christmastime. Boulos also shared a photo with her at a White House Christmas party, captioned, "Christmas vibes are the best vibes," in a post that no longer appears on his page.

February 2019: They attended New York Fashion Week with Tiffany Trump's mother, Marla Maples.

As they had the year before, Tiffany Trump and Boulos sat in the front row of the Taoray Wang show.

April 2019: Boulos joined the Trump family for Easter services at the Bethesda-by-the-Sea Episcopal Church in Palm Beach, Florida.

Tiffany Trump shared a photo of herself and Boulos, as well as snapshots with her father, Donald Trump Jr., and Kimberly Guilfoyle, on Instagram. The photos are no longer available on her Instagram page.

May 2019: They stepped out together at the Cannes Film Festival.

Public records showed that the three-night trip to France, during which the couple stayed at the Marriott Jesta Fontainebleau hotel, cost taxpayers at least $20,000, Quartz reported.

"For operational security reasons, the Secret Service cannot discuss specifically nor in general terms the means, methods, resources, costs, or numbers we utilize to carry out our protective responsibilities," a Secret Service spokesperson told Quartz.

June 2019: They flew to Orlando for a rally kicking off Donald Trump's 2020 campaign.

"With every ounce of heart and mind, and sweat and soul, we're going to keep making America great again, and then we will indeed keep America great," Donald Trump said in his speech. "I will keep it so great. Better than ever before. We're going to keep it better than ever before. And that is why tonight, I stand before you to officially launch my campaign for a second term as president of the United States."

August 2019: Tiffany Trump wished Boulos a happy birthday on Instagram, writing that he fills her life with "so much joy, kindness and laughter!"

"Happy Birthday, @michaelboulos," she captioned a photo of her and Boulos. "You fill my life with so much joy, kindness and laughter! Thank you for always putting a smile on my face!"

September 2019: Boulos joined his girlfriend to hear Donald Trump speak at the UN.

Boulos sat behind Tiffany, who was seated beside Donald Trump Jr. and Kimberly Guilfoyle.

November 2019: They greeted guests at the national Thanksgiving turkey pardoning event in the Rose Garden of the White House.

How the turkey pardoning tradition started is still a bit of a mystery, but the White House traces it all the way back to President Abraham Lincoln in 1863.

December 2019: They celebrated New Year's together at Mar-a-Lago.

Trump's other children were in attendance, as well as his then-lawyer Rudy Giuliani.

July 2020: Trump and Boulos waved to crowds gathered at Mount Rushmore for Independence Day fireworks.

They were joined by Eric Trump and Lara Trump.

August 2020: They attended the funeral of Donald Trump's brother, Robert.

Robert Trump died on August 15, 2020 at the age of 71.

"He was not just my brother, he was my best friend," Donald Trump said in a statement. "He will be greatly missed, but we will meet again. His memory will live on in my heart forever. Robert, I love you. Rest in peace."

August 2020: Tiffany Trump and Boulos attended the Republican National Convention, where she gave a speech.

She gave a speech on the second night of the RNC in support of her father, speaking about her recent graduation from Georgetown Law School.

"Like so many students across the world, I graduated from law school during the pandemic," she said. "Our generation is unified in facing the future in uncertain times. And many of us are considering what kind of country we want to live in. As a recent graduate, I can relate to so many of you who might be looking for a job. My father built a thriving economy once and believe me, he will do it again."

October 2020: They arrived in Nashville to watch the final presidential debate between Donald Trump and Joe Biden.

The debate featured plexiglass barriers between the candidates to prevent the spread of COVID-19 and a mute button to prevent them from talking over each other.

November 2020: They joined Donald Trump at the White House to watch the election results come in.

The Trumps watched election results in the East Room of the White House.

January 2021: The couple announced their engagement on Instagram the day before Trump left office.

The day before Biden's inauguration, Tiffany Trump shared an Instagram photo of her and Boulos standing in the White House Colonnade.

"It has been an honor to celebrate many milestones, historic occasions and create memories with my family here at the White House, none more special than my engagement to my amazing fiancé Michael!" she wrote. "Feeling blessed and excited for the next chapter!"

Boulos also announced their engagement on Instagram, writing, "Got engaged to the love of my life! Looking forward to our next chapter together."

Boulos proposed in the White House Rose Garden with a diamond ring worth $1.2 million, People magazine reported.

July 2021: Trump and Boulos, who moved to Miami after her father's presidency, were spotted in Mykonos.

Tiffany Trump and Boulos vacationed in Mykonos, where their relationship began, over the summer. People magazine reported that they were looking at possible locations for a destination wedding.

May 2022: Tiffany Trump and Boulos chose Mar-a-Lago as their wedding venue.

Page Six reported that Donald Trump and his ex-wife, Tiffany's mother Marla Maples, would host the wedding at Mar-a-Lago with over 500 people expected to attend.

November 2022: Tropical Storm Nicole made landfall north of Palm Beach days before the wedding, putting their wedding plans in jeopardy.

Days before the wedding, Mar-a-Lago and its surrounding coastal residential areas were under mandatory evacuation orders because of the storm.

A Mar-a-Lago employee confirmed to Business Insider that the club had reopened on Friday, November 11, just in time for Trump and Boulos' welcome dinner.

November 2022: Tiffany Trump and Boulos' wedding proceeded as planned.

Tiffany Trump wore a sparkling long-sleeved wedding dress from Lebanese fashion designer Elie Saab, a likely nod to Boulos' Lebanese heritage. The couple exchanged vows under a gazebo decorated with cascading bouquets of pastel-colored flowers.

In an Instagram post, Tiffany Trump described the wedding as "The most magical day."

May 2024: Tiffany Trump and Boulos attended the closing arguments of Donald Trump's hush-money trial in New York City.

Donald Trump was found guilty on all 34 felony counts of falsifying business records to cover up a $130,000 hush-money payment to adult film actor Stormy Daniels ahead of the 2016 election. The former president denies ever having sex with Daniels and has called the trial a "witch hunt."

July 2024: They attended days two and four of the Republican National Convention.

Unlike in 2020, Tiffany Trump did not speak at the 2024 Republican National Convention.

October 2024: While speaking at a campaign event, Donald Trump announced that Tiffany Trump and Boulos are expecting their first child.

Speaking to a crowd at the Detroit Economic Club, Donald Trump shared the news while acknowledging the presence of Michael Boulos' father, businessman Massad Boulos, at the event.

"He happens to be the father of Tiffany's husband Michael, who's a very exceptional young guy, and she's an exceptional young woman," he said. "And she's going to have a baby, so that's nice."