An expecting mom is honoring her late husband in a touching photo shoot.

Kelly Luethe's husband, Jarrett, was killed in a car crash in August by a man who police say admitted to driving after drinking, the Star Tribune reports.

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The couple from New Prague, Minnesota, had two children and another on the way in January.

Kelly recently had a maternity photo shoot ahead of the baby's arrival. Photographer Jessica Brandau shared the stunning images to her Facebook page last week.

Many of the photos captured rainbows and lens flares, which Brandau calls "orbs."

“As we were doing the shoot, I noticed that a rainbow had popped up in a few of the photos,” Brandau wrote on Facebook. “Kelly and I talked about how neat/cool/weird it was, and I literally had goosebumps/was on the verge of tears for most of her session.”

>> See one of the photos here

According to the Epoch Times, orbs are usually caused by light reflecting off dust in photographs, but some believe they represent the supernatural – like spirits or ghosts.

“Imagine how insane it was when I opened up the files on my computer and realized that the rainbows and orbs (yes I totally believe in orbs. Read up on them if you haven’t heard of them!) show up in almost all of the photos that we took that day,” Brandau wrote.

Kelly shared her story with news personality Frank Sommerville on Facebook. Kelly said she believed her husband was watching over her that day.

She wrote: "There is a rainbow on my belly in almost every picture and we had a miscarriage earlier this year and so our little man (who will be named after his Daddy) is our rainbow baby. And the orbs that are shown are of my favorite color green and from doing some research on what the color of an orb means, green is from a happy spirit visiting, sending healing energy. I truly believe my husband was there and is watching over the kids and I."

>> See more photos here