Lizzie Deignan has revealed that she thought her racing days were over before she signed for the new Trek Factory Racing team.
The 29-year-old former world champion is sitting out this season as she expects her first child next month with her husband, the Team Sky rider Philip Deignan.
It was announced last month that the Boels-Dolmans rider will switch teams and lead Trek Factory Racing next year.
> Trek launches women's road team led by Lizzie Deignan
However, she told BBC Sport that she was worried she would be unable to return to the sport following her pregnancy.
"It's unprecedented in that way," she explained to BBC Radio 5 live's Business of Sport.
"My career was up in the air really but I was then approached by Trek.
"I was concerned about my future in the sport as it hasn't really happened before at elite level road cycling.
"There haven't really been mothers who have stepped away from it and come back and been supported."
Deignan’s big target next year is to win back the rainbow jersey she won on the road in Richmond, Virginia three years ago, with the 2019 UCI Road World Championships being raced on her home roads in Yorkshire.
The Otley-born rider said: "It wasn't something I ever considered before, becoming a mum while being a cyclist or the potential of returning to professional sport as a mother.
"It's not something everybody is thinking about but it is definitely a limiting factor for most women in their career."
One rider who has enjoyed top-level success since giving birth – although a time trial specialist rather than pure road racer –is the American, Kristin Armstrong.
She gave birth to her son in 2010, two years after winning the individual time trial at the Beijing Olympics.
Now aged 45 and also a double world champion against the clock, Armstrong went on to retain her title in London in 2012 and made it a hat-trick in Rio two years ago, despite having announced her retirement in 2015.
My usual response is "I don't want to have to waste my time giving evidence at your inquest, plus as a taxpayer I don't want resources wasted...
We used to have one but the wheels fell off...
I haven't visited the tweet about this, I suspect it would make me very angry at these people and I would not be able to avoid taking issue with...
Unfortunately effective negative reinforcement is even more lacking than positive reward for Doing The Right Thing......
if only they would stick to burgers, insted of getting involved in town planning.
On a blind bend, on a blind crest outside of a school with children walking and cars actively passing in the other direction. ...
I doubt the horses in the new forest or dartmoor get cyclist training. But they seem completely indifferent to cyclists. So what are the horse...
exactly. Unless there's something that stops them (oh, wait, black boxes..)
You're right about the bypass though, it makes it much more pleasant to ride through the town at any time of day, including the old road north out...
what about minority tourists?