Sarah Herron shares joyous news of expecting fraternal twins as she reveals ultrasound journey

LOS ANGELES, CALIFORNIA: On Thursday, Sarah Herron shared with her fans the news of expecting fraternal twins.

After undergoing multiple tests and sonograms, the 'Bachelor' alum took to her Instagram Story to share the news.

Sarah Herron's pregnancy update!

Over one image, she wrote, "Last week, we had our 12-week scan with the babies. They are measuring exactly the same size, and their zogosity test confirmed that they are fraternal twins, which is a strong indication that both mosaic embryos implanted (Rather than 1 embryo splitting)."

Sarah labeled the second image as "twin A" and "twin B." Herron discussed her initial ultrasound experience, revealing that she initially thought she was expecting triplets.

"What's really crazy that I haven't talked about yet, is that when I went in for 1st ultrasound, there were actually 3 gestational sacs. Yes, that means baby A tried to split and become identical twins, but a yolk and fetal pole never developed. SOOO ... this means for about 15 seconds I had a heart attack that there were going to be triplets," she wrote.

Herron also said, "She showed another close-up of her ultrasound that labeled the twins as 'Baby A' and 'Baby B' and wrote about her husband Brown, 'He's very chipper as always.'"

Sarah Herron first shared about her pregnancy in January

In her January post, she first revealed about her pregnancy with a long update, reports People. 

“The morning we found out we were losing Oliver, a friend of mine who’d been through loss encouraged me to take as many photos and videos as I could in our final hours of pregnancy. Still to this day, I’m stunned that they’re some of the only videos I have of me pregnant with Oliver,” she began. 

"I suppose it just never occurred to me to capture videos during happier moments. I've been cautious in this pregnancy not to become 'too attached too soon.'"

She continued, “I’ve been wearing baggier clothing, hibernating and denying when friends ask me on the phone if I’m starting to show yet."

"Even in subsequent pregnancy I 'still' find myself limiting my exposure to other women’s pregnancies—even my own. Pregnancy after loss is just a whole new, complicated territory and I wish there was a playbook," she added.

"But when I got out of the shower the other day and caught my reflection, there was no denying that there were two beautiful little girls growing inside my belly. So while part of me saying 'Play it safe, don’t go there yet' there’s another part of me, a more authentic part of me that’s saying 'This is happening. It’s ok to let yourself enjoy it.'"