Alicia Vikander knows motherhood is no easy feat.

The Tomb Raider star confirmed that she and husband Michael Fassbender welcomed their second baby together while reflecting on her pregnancy.

“All women have such different experiences, and going through it a second time was definitely harder for me,” Alicia told Elle in an interview published July 24. “But I think training made it easier. Going through those nine months is like a marathon, so it does help if you’re strong going into it.”

“It’s so physically demanding, and I have so much admiration for any woman who has done it,” she continued. “I gave birth four times on screen before I did it myself. Your job is to pretend as an actor, but every time I had to give birth, I said to every woman on set, ‘I’m sorry.’ I felt like such an imposter.”

Alicia and Michael—who tied the knot in 2017—are also parents to a 3-year-old son, whose name has not been made public. But in the past, the Ex Machina actress admitted she didn’t envision herself being a mom.

“I didn’t think I even wanted children, actually, until I was 30," she previously told Harper’s Bazaar, but after having her baby, she’d changed "in every way. It’s life. It’s so profound."

One of the biggest changes? Her priorities in life.

"Becoming a parent changes you in a second when the child arrives," the 35-year-old told E! News last month. "I, for sure, now have a lot more insight and especially all the worries."

She added, "I think it also gives you extra strength because it's like it's beyond you. It's not just you or survival. You need to stay alive to make sure that you can take care of these young children."

Now, read on to see where it all began for Alicia and Michael.

Back in November 2014, a source told E! News exclusively that the lovebirds were "casually dating." Around that time, the actors were spotted catching some waves together at Bondi Beach in Sydney. 

Alicia and Michael met on the set of The Light Between Oceans, a psychological drama that finally received its September 2016 release date two years after filming wrapped. 

Notoriously tight-lipped when it comes to their relationship, the duo proved they were still going strong when they attended the 2015 Infiniti Red Bull Racing Energy Station in Monte Carlo together. 

Jet-setters! Fans of the longtime couple couldn't help but gush over Michael and Alicia's relationship taking a seemingly serious turn.

The Tomb Raider star kicked off the 2016 awards season by stepping out for dinner with her leading man ahead of the BAFTAs in London. 

These two couldn't keep their eyes of each other while spotted at the 2016 Venice Film Festival.

In The Light Between Oceans, the real-life couple play childless spouses who raise a baby they've rescue from a rowboat as their own. Naturally, complications ensue. 

While promoting their latest film, the stars stepped out at the Venice Film Festival in September 2016 looking every inch joyously in love.

Alicia and Michael were all smiles as they walked the 2016 Venice Film Festival red carpet together with their arms around each other.

For the latest breaking news updates, click here to download the E! News App