If it makes you feel better, it costs an average of $18,865 for an uninsured American to give birth to a healthy baby, and a tenth of the country is uninsured.
I mean, it doesn't make me feel better, because I live here. But you don't, so YMMV. Or I suppose YKMV, in metric, because the US still uses imperial measurements for everything, because we're too good for real numbers. USA! USA!
I have never found this to be normal with jobs, no. But in the US, most employment is at-will, so you can be fired without cause at any time.
(I've encountered probation windows where benefits don't kick in for 3-6 months, and that's hideous in a country without single payer health care, but never a tryout period.)