This prelabor phase can last for weeks. You might notice an increase in vaginal discharge. This may include losing your mucous plug. This might even be tinged with pink. This is a sign that can mean labor will begin anytime in the next few weeks. You may notice a brown tinged discharge after having sex or a vaginal exam. This is completely normal.
Contractions are another sign of impending labor. Some of these are the Braxton-Hicks contractions. They happen but don't really go anywhere. You can also have real contractions that are working on changing your cervix slightly or getting your baby to get into a better position, but don't last long or get stronger.