What was it like Working During your Pregnancy?

I’ve seen and heard of a lot of women working during either some of their pregnancy or throughout their entire pregnancy. I’m about to start a new job, but I’m worried that the things like random nausea, severe yet short cramping, and other symptoms or pains will get in the way considering the job mainly requires a lot of standing and can be fast paced. This is also my first pregnancy. Yes, I have support and will accept the extra help, but I still want to have my own income to do and buy the things my baby will need on my own.