If your water breaks and your amniotic fluid is yellow, green, or bloody fluid, your provider will likely tell you to go to the hospital. That's because there may be meconium (fetal stool—yes, they make it while inside the womb) in your amniotic fluid, signaling that the child may be in distress. But at some point prior to going into labor, you may also pass blood-tinged thick mucous (think of it as a cork in a bottle of wine). Doctors call this the bloody show; it looks a lot like phlegm.
This doesn't necessarily mean you're in active labor—in fact, it can occur up to a week before labor begins. A bloody show is generally a positive sign that your cervix is dilating and does not require you to call your doctor. If you tested positive for group B strep, there is a higher chance that this bacteria can find its way into and infect the uterus now that the water is broken, since the sterile sac has been compromised.
Find out more about this book:YOU: Having a Baby: The Owner's Manual to a Happy and Healthy Pregnancy