Kick, kick, kicking
Keep paying attention to your baby's movements. Let your doctor or midwife know right away if they seem to decrease. Your baby should remain active right up to delivery, and a noticeable slowdown in activity could be a sign of a problem.
Ripening cervix?
At a prenatal checkup, your provider might do an internal exam to see whether your cervix has started ripening: softening, effacing (thinning out), and dilating (opening). But even with this information, there's still no way to predict exactly when your baby is coming.
Leaking fluid?
Call your provider if you think your water may have broken. Sometimes there's a big gush of fluid, but sometimes there's only a small gush or a slow leak. (Don't try to make the diagnosis yourself. Call even if you only suspect you have a leak.) If your water breaks but contractions don't start soon, you'll be induced.