I had planned on taking a car racing driving school course, but found out I'd be about 12 weeks pregnant during the course. I knew at 5 weeks that I wasn't the driver I was a few weeks prior and cancelled.
My balance was horrible as was my depth perception and my reaction times were noticeably slower. Also, my energy levels were cut in half (although that turned out to be hypothyroidism/Hashimoto's.)
2013 Specialized Ruby Sport
2012 Specialized Crossroads Sport
1998 Trek 800 Sport
1992 Performance Focus