Time really flies，距预产期只剩下短短的33天了。赶紧查查资料，再温习一遍临产前的各种症状。Hehe，早作准备，希望到时能临阵不慌。

According to the American College of Obstetricians and Gynecologists, the following symptoms indicate the onset of labor:

1. Bloody show（见红）: You notice a pink stain on your underwear or toilet tissue. This indicates that you lost the mucus plug.
2. Rupture of membranes（破水）: You feel fluid gush or trickle from your vagina, indicating that the bag of water containing your baby has ruptured.
3. Regular contractions that intensify（频率和强度不断增加的阵痛）: You feel contractions that are frequent and increasingly painful. They don’t go away but instead intensify with physical activity.
4. Pain in lower back（放射性后背痛）: You feel a regular and intense pain in your lower back that radiates to your lower abdomen and sometimes even to your legs.
5. Cramps that feel like intestinal upset（产生便意）: You feel cramping that seems like the onset of diarrhea, and you may actually experience diarrhea.

Important note: Don’t insert tampons, take a tub bath, or have intercourse after the rupture of membranes. If the fluid from the rupture is tinted green, brown, or gold, contact your doctor immediately. This is a possible sign of fetal distress.