Car sickness

Over two years ttc so I'm totally symptom checking but is motion sickness an early sign of pregnancy? Only 7ish days past ovulation but I rarely get car sick. I did when I was younger but outgrew it. It just started the other day. We went to Disneyland Resort and had no motion sickness but in the car it's pretty bad. But it's most likely my husband's driving, because we are traveling in California and he insisted on renting a sports car plus the traffic probably isn't helping.

Anyone have any ideas about this?