I'm 6 months pregnant and allergic to bees. what do i do in a situation i am stung?

The same as if not pregnant. You have not described what your allergic reaction is or has been. Treatment would be the same as if not pregnant. As long as you are breathing effectively & blood flow is not impaired it should not bother the fetus significantly. Plan to use whatever treatment you would otherwise do. Confirm this with your OB to make sure they don't have added suggestions.