Congratulations on your pregnancy! 

I am currently 15 weeks pregnant.  Our second daughter was born with SW CAH so I am taking  the dex tablets which was started at 8 weeks of pregnancy. As for side effects, the only one I have is a greatly increased appetite. I am also scheduled to have an amnio next week (16 weeks) in order to tell the sex of the baby and whether or not it has CAH. I don't know how long the results take to come in, but I've heard it takes about 2-3 weeks.

Hope some of this helps and once again congratulations and good luck.