Congratulations on your pregnancy!!!
Just for your info, when I went off Pulmozyme (not b/c of pregnancy), I was congested too. Ask your doctor about taking NAC (n-acetyl cysteine). That really helped me thin out my phlegm. Also, read up on mucolyxir. I have just started that and it really thins out things. Maybe between the two of these things, you could find something that helps you stay clear, but doesn't harm your baby. <img src="i/expressions/face-icon-small-smile.gif" border="0">