I don't know hun! If your gut is telling you not to go, then don't go.
In pregnancy, you shouldn't do anything that your body isn't used to. For example, I ride my horses most days and if I choose can continue this into pregnancy, but if someone who wasn't used to riding started riding when they were preg, then it is more dangerous - i'm not talking falling off, I mean the lot.
The bean/embryo/baby is so well protected in there so it is really hard to say! I know of plenty of women who have a fall and the baby has been ok, but i'm sure there are the opposite stories out there.
Have fun whatever you decide to do and stay safe
