I'm pregnant and my temp agency didn't tell them. ...

I'm pregnant and my temp agency didn't tell them. I told the lady on the first day for orientation and she made it seem like her puppy just died. Still decided to go work for them, cuz I need a job bad to save money. My second day I had a scheduled appointment for my prenatal care and they called the temp agency telling me I have to change my prenatal care to days I'm off. So now I have to change my prenatal care doctor to someone else all because they're too stubborn and don't want to work with me? Very very inconsiderate company. No wonder they have more temp agency people working for them than actual employees.