Add Yahoo as a preferred source to see more of our stories on Google. Your body knows how to keep your baby safe during pregnancy, starting with the mucus plug. Learn what the mucus plug is, what it ...

Some changes in your body during pregnancy are not obvious, as they quietly happen in the background. They may show up just at the right time. Your body forms a mucus plug to protect your baby.

Please provide your email address to receive an email when new articles are posted on . Reductions in mucus plug scores correlated with reductions in fractional exhaled nitric oxide levels. These ...