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Arie Luyendyk Jr and his wife Lauren Burnham finally found out the sex of their expected fourth child this week.
The 43-year-old Bachelor star and his 33-year-old wife shared their happy news in an Instagram Reels update featuring their three children: daughters Alessi, five; Senna, three; and her twin brother Lux.
Before revealing the sex of their fourth child — which they previously said would be their last — Arie and Lauren both revealed that they thought it would be a boy.
‘I think it’s a boy,’ Lauren admitted in a YouTube video showing the sex reveal in more detail. ‘And I thought it was a boy the entire time.
‘If my instincts are wrong, I’m going to be so shocked,’ she added.
Arie noted that he was ‘wearing blue’ because he also expected a boy.

Arie Luyendyk Jr. and his wife Lauren Burnham finally found out the sex of their upcoming fourth child this week when they held a reveal celebration

Both Arie and Lauren said they were expecting a boy just before finding out the sex of their fourth child, which they have said will be their last
‘This pregnancy feels different,’ he said.
In their sex reveal video, they both held opaque black balloons containing colored confetti, with leaves and flowers decorating the strings.
But as soon as they pricked the balloons, they exploded in a shower of pink confetti that rained down on their three children, revealing that they were expecting a girl.
Arie squinted with an ear-to-ear smile and doubled over laughing at the unexpected result, but everyone in the family was clearly overjoyed.
‘You’re gonna have a sister!’ he shouted at the children, and own of the onlookers filming screamed, ‘No way!’
Afterward, Alessi, Senna and Lux got to chow down on some pink-dyed vanilla cake to cap off the exciting announcement.
The announcement was only possible because Arie made the choice to get his vasectomy reversed earlier this year, though the procedure is not as irreversible as it is often touted as being.
In April of 2024, the auto racer admitted that he felt he had ‘rushed’ into getting the vasectomy and subsequently regretted it.

The 43-year-old Bachelor star and his 33-year-old wife were joined by their three children — daughters Alessi, five; Senna, three; and her twin brother Lux — as they popped black balloons filled with colored confetti

The balloons exploded in a shower of pink confetti that rained down on the children, revealing that they were expecting a girl

The announcement was only possible because Arie made the choice to get his vasectomy reversed earlier this year, though the procedure is not as irreversible as it is often touted as being

In April of 2024, the auto racer admitted that he felt he had ‘rushed’ into getting the vasectomy and subsequently regretted it
In March, Lauren revealed the couple faced a stumbling block when she experienced a chemic pregnancy prior to conceiving their fourth child.
‘We tried and tried,’ she emphasized in a YouTube vlog at the time. ‘And we were unsuccessful for a little bit and then we had a chemical pregnancy. I’ve never had a chemical pregnancy before, so I thought that was it. Like we were actually pregnant.’
Lauren also bragged that she ‘surprised’ her husband ‘for the first time ever’ when she revealed she was pregnant.
‘His one request for our last pregnancy was that I surprise him in a cute way because I always just tell him immediately because I can’t keep secrets,’ she admitted.
Contrary to what the name would suggest, a chemical pregnancy occurs when an embryo forms and implants within the uterus lining, but then stops developing within the first five weeks, according to the Cleveland Clinic.
The pregnancy is detectable via hormonal tests — hence the name — but after the embryo ceases developing the hormone levels will return to normal.