Some women's waters are never broken. If you're hoping for labor to begin with the spectacular gush of your water breaking, you could be disappointed. Some women's waters do not burst until they are deep into labor, or sometimes just moments before the baby is delivered. The fluid that fills your uterus and bladder is called "uterine milk." It is a similar color (red) and consistency (watery) than breast milk. However, instead of containing nutrients that help your body build muscle and heal wounds, it contains cells that will form the lining of your uterus and cervix. The appearance of your water breaking does not always mean that you are going into labor. Most often, your doctor will tell you if this is true. He or she may also tell you to come back later if your water has not broken by then. A few hospitals require lab work prior to allowing pregnant patients to leave against medical advice. If this is the case, your doctor may want to observe you for another indication of labor before releasing you. For example, he or she might monitor your cervical dilation or listen to the heart rate of your fetus via an ultrasound. It is very important to remember that pregnancy is a unique situation where many things can happen in the body that would not normally occur otherwise. This means that even though your water may not have broken yet, it does not mean that you cannot still be pregnant.