There is always the fact that NOT ALL REPTILES carry salmonella.
Proven Fact.
However, unless you have had your beardie tested, you will never know, so it is always wide to practice caution.
Salmonella can be fatal in people of exceptionally weakened immune systems, so be VERY VERY careful when dealing with beardie, and then touching your wife.
I haven't checked if it can be passed to the foetus, but if you are sensible, you won't even need to worry.