After years of thinking herself infertile, a woman with two sets of reproductive organs is now expecting a baby.
Krista Schwab, 32, was diagnosed with uterus didelphys, a rare congenital abnormality that occurs when a woman's two "uterine horns" fail to fuse together into one, functioning uterus, according to Scientific American. She has two complete sets of reproductive organs: two uteruses, two cervixes and two vaginas.
About 1 in 2,000 women have the condition worldwide. Although pregnancy is not impossible, it can be more difficult.
After two miscarriages, Krista and her husband, Courtney, had given up ever having a child, according to the Daily Mail. Because Krista assumed she was infertile, she wasn't using any form of contraception.
"For so many years my husband and I cried, prayed and dreamed of having a child," she said. "We both had so many breakdowns because we wanted one so much."
In December 2016, she noticed that she began to put on some weight. She decided to buy a pregnancy test, but wasn't too hopeful about the results.
"Last December I put on weight so I bought my billionth pregnancy test, which my husband and I thought was just a waste of money," she said. "I normally pray and hope whilst I wait, but this time I lost all hope and didn't bother."
"Then I saw it -- it was positive. I hit the floor crying."
Krista is now five months pregnant and the fetus is growing in her left uterus, which does not have an ovary attached to it.
"The only ovary that was functioning was on that right side with that very shallow opening, there was no connection for the left to get an egg through it," she said.
"It's incredible because doctors still don't understand it. The fact that I'm pregnant on the left side and it's impossible for the egg to get there."
Krista, who currently lives in Vancouver, Washington, says she hopes to give birth to her son naturally. Doctors think it's unlikely and say she may need a cesarean section.
"I am scared that he will get stuck, one vagina is much smaller, if they were both one vagina it'd be a normal size," she says.
Robert Zurawin, an OB-GYN at Baylor College of Medicine in Houston, tells Scientific American that women can sometimes live their entire lives without knowing they have uterus didelphys.
"Most women aren't even aware they have the condition until they become pregnant and get an ultrasound exam," he said.
For women with more pronounced forms of the condition, like Krista, it can be more difficult to conceive. Because she also has two vaginas, she was diagnosed at the age of 12.
She hopes her story can inspire other women with the condition to not give up hope of conception.
"Ten years of trying to have a baby it just happened," she said. "I want women with uterine didelphys to never let anyone tell them miracles can't happen because they do."