Lindsey Vonnsays she seriously considered switching sports from downhill ski racing to Formula 1 racing ... but claims a policy about pregnancy prevented it from happening.
The 35-year-old Olympic legend explained the whole thing on "In Depth with Graham Bensinger" ... saying she was specifically told she would need to make a 3-year commitment to NOT getting pregnant in order to get a shot as a pro driver.
"I was thinking about switching, going to Formula One. Like actually trying to be a racer, a driver. But, I couldn't because they wanted me to commit, what was it, 3 years? And, they're like you can't get pregnant, you can't do anything. I'm like hmm, I don't know if I really want to do that."
Vonn says the opportunity would have been with the Red Bull racing team -- and it's something she would have "loved to have done" ... but ultimately, she wasn't down to put off having a family.