I was a CNA when I got pregnant with my first daughter. Must have been something in that water in the facility because there were 3 CNA's all who got pregnant around the same time, 4 nurses (all due around the same time as the CNA's) and one from housekeeping. Anyway, all of the nurses, CNA's worked right up until their due dates.
I worked Sunday 3-11pm, 2:22am on Monday my water broke and I delivered my daughter a few hours later.
None of the CNA's or nurses had any issues with working while pregnant.
Actually most of the other staff would go insane if they saw any of the mom's to be lifting, bending, stretching etc and go out of their way to help. Use to drive me insane, I was pregnant, I wasn't all of a sudden a fragile, weak, ill person. LOL
I would suggest if this is your first job as a CNA to take it easy, your body isn't use to the stresses of the job. Add to that all the changes that your body will go through pregnant, and you could hurt yourself or the baby. I had 6 years of full time work as a CNA at the time I got pregnant, my body was soooo used to the back breaking work by then. I actually felt great right up until I delieverd. The shift before I delivered I did feel "odd", stupid me just didn't realize I was in early labor
Congrats on the unexpected surprise