My boss doesn't ask me to biz trip. As long as I can't meet clients for the forthcoming mths so I propose my boss I will go to a trip end of the mth. He concerns abt my health and asks for my dr's advice and I think it's ok. I m now hv 5 mths pregnant and my condition allows me to go.
Work is work, i get the salary and need to contribute under safe condition. So you may ask yr boss to make some arrangement to keep you safe, e.g. hire a car for u