Your safety and that of your baby really depends on what substances
you are handling. Gold and Silver are non-toxic but the rubber
abrasives used on flex shaft mandrels can be. But you'd have to be
huffing the dust to have it really harm you, so a good dust filtering
mask should do the trick.
I would avoid the vapors from melting plastic, the off-gassing of
solvents, avoid handling acetone, paint thinner, and oil, lead-based
or acrylic paint. I would avoid pewter, even though the new pewter's
are lead free you can't always tell if that's what your handling.
Avoid using fluxes that contain fluorides, but I do that as a
general practice for my own health.
Avoid using Mapp gases for soldering and if you are using acetylene
gas, I would switch to propane. Mapp gas and Acetylene gas flames
off-gas carcinogenic chemicals and without proper ventilation have
been linked to some reproductive problems / birth defects by the
state of California. Check the Hazardous Materials Data Sheets that
should accompany those gas tanks, for more "google" the
Hazardous Materials Data Sheets for info on those gases.
I worked straight through my pregnancy using propane gas and boric
acid in alcohol as flux until in my 9th month when my fingers swelled
up so I couldn't grip small jewelry tools or parts. My friend Lulu
Smith who works in silver with colored resins is comfortable
continuing to mix and pour her resins during her pregnancy. And our
children are health kids, heck my son weighed 10lbs, at birth. As
long as you are handling non-toxic materials there should be no risk
for you or your baby. Congratulations!
Associate Editor / Art Jewelry magazine
21027 Crossroads Circle / Waukesha WI 53187-1612