One in 2,500 moms gives birth after a "cryptic" pregnancy or "denial in pregnancy," and a Canadian woman can now count herself among their number after a Calgary-to-Tokyo flight ended in the birth of her surprise baby girl, reports the CBC. Ada Guan, 23, was flying to Japan on Air Canada when she got moved to first class "somewhere over Russia," as the CBC puts it, because of incredible stomach pains. Boyfriend Wesley Branch comforted her as her contractions became stronger, until what was going on suddenly hit, both metaphorically and literally. "She said, 'Babe, something just fell out of me, can you check?'" Branch recalls. "And I checked, and I seen this little baby head, I was shocked, and I passed out, and I got back up, and I said, 'We have a kid. I can't believe we have a kid.'"
Luckily, there were three doctors on the plane to help deliver baby Chloe, the CBC notes. Unluckily, the new parents were hit with around $2,000 in medical bills when they landed and went to a hospital in Japan, so they've started a GoFundMe site. While one Vancouver obstetrician says it's rare to get all the way to labor without having a clue you're pregnant—"It's pretty hard to deny a large mass in the front of your abdomen," she tells the CBC—others point out it's possible if women are obese, have irregular periods, or in essence ignore the pregnancy for psychological reasons. "It doesn't make any sense, but we're very happy," Branch says. The couple says Guan took a home pregnancy test a month ago—it came back negative. (An Iowa woman knew she was pregnant, but was off by many, many weeks.)