I had a friend who was trying to hide her pregnancy so she was getting on the rides and although she didn't have a miscarriage, I still would not recommend it.
Yes need to stay away. I misscared my first child. Because i was so dumb and went on ride. I wish somebody woulda kept me away from that.
I would most definitely skip the rides.
Stay away from the rides. Some kitty rides are safe for you, maybe you can ride them with the little ones if there are children going as well.
It will really increase your chance of miscarriage. I have a friend that miscarried at 8 week the day after going dirt bike riding. The bums and jolts aren't safe for the baby no matter how early in the pregnancy. Better safe than sorry.