A.,
you will be surprised; CHARCOAL is the emergency kit,
just in case for you to know: even a stick of charcoal for drawing - ask artists! - and if you have a
stove/fireplace/campfire,
you can munch on some black 'charcoaled' piece of wood,
and all the gas goes pout fast!
this is for emergency, as i say, because if it starts bothering you when you are on the 9th month,
you will not think twice to get ANY help availabe...
Soda, fastfood, grapes, raisins are not recommended.
fruit and dessert with fruit AFTeR the main course are always a danger for getting gas problems:
they recommend to eat fruit first, then after about 15-30 minutes - other food....
wishing you well!