The cervix must be 100% effaced and 10 cm dilated before a vaginal delivery. The first stage of labor and birth occurs when you begin to feel persistent contractions.
But if you're close to 10 centimeters dilated the research suggests it's not an issue. Evidence suggests it's more of a theoretical fear that just adds additional stress and in some cases results in an epidural (or a higher dose of epidural) to mask that urge.
Until recently, women have been asked to start pushing as soon as the cervix has dilated to 10 centimeters, but as long as you do not have a fever and your baby's heart rate is normal, there are many benefits to waiting to push until you feel the need to push.
Your cervix needs to open about 10cm for your baby to pass through it. This is what's called being fully dilated. In a 1st pregnancy, the time from the start of established labour to being fully dilated is usually 8 to 18 hours. It's often quicker (around 5 to 12 hours), in a 2nd or 3rd pregnancy.
The second stage of labor begins once you are fully dilated to 10 cm. Your provider will let you know that it is time to start pushing your baby out. This stage can be as short as 20 minutes or as long as a few hours.
Doctors have to wait until the cervix is at least 4 centimeters dilated before doing an epidural. Otherwise, the epidural will slow the process down too much. However, once the cervix becomes fully dilated it is too late for an epidural to be given.
With no epidural or narcotics on board, most birthing parents rate active-phase labor a 10 on the pain scale of 1 to 10. With pain management techniques taught in childbirth education, however, laboring parents can greatly reduce the intensity of the pain they experience.
(The last part of active labor, when the cervix dilates fully from 8 to 10 cm, is called transition.) This process takes about 5 to 7 hours if you're a first-time mom, or between 2 and 4 hours if you've had a baby before. The exact duration of this stage is different for everyone.
During active labor, your cervix will dilate from 6 centimeters (cm) to 10 cm. Your contractions will become stronger, closer together and regular. Your legs might cramp, and you might feel nauseated.
During the transition phase of labor, the cervix dilates to the following sizes: 8 cm, the size of an apple. 9 cm, the size of a donut. 10 cm, the size of a large bagel.
Getting up and moving around may help speed dilation by increasing blood flow. Walking around the room, doing simple movements in bed or chair, or even changing positions may encourage dilation. This is because the weight of the baby applies pressure to the cervix.
The most common reason for telling a women not to push is that her cervix is not fully dilated. Often when a baby is in an occipito posterior position the woman will feel the urge to push before the cervix is completely open.
If one fingertip fits, the cervix is considered to be 1 cm dilated. If the tips of two fingers fit, this means the cervix is 2 cm dilated. Depending on the distance the two fingers can stretch apart, it's possible to indicate further dilation. It is usual to refer to full dilation as 10 centimeters.
Some women will instinctively push before their cervix is fully dilated. This is often treated as a complication, and a common approach is to encourage the woman to stop pushing due to fear that cervical damage will occur. However, there is no evidence to support this concern.
Second Stage or Active Labor
The second stage, also called active labor, is the pushing stage of labor. The second stage is the most painful stage of labor. The baby passes through the cervix, through the pelvis and birth canal, and out through the vaginal opening.
Most women find the most painful part of labor and delivery to be the contractions, while some others may feel pushing or post-delivery is most painful. Pain during labor and delivery may also be caused by pressure on the bladder and bowels by the baby's head and the stretching of the birth canal and vagina.
The aftermath of the root canal can affect your daily activities for a couple of days, make it difficult to eat, and require pain medication. Women who have needed root canal say it is worse than childbirth.
When can you get an epidural? Typically, you can receive an epidural as early as when you are 4 to 5 centimeters dilated and in active labor. Normally, it takes about 15 minutes to place the epidural catheter and for the pain to start subsiding and another 20 minutes to go into full effect.
The potential for a quicker labor, delivery and recovery – For some people, a natural birth may go more quickly. While it depends on several different factors, like how relaxed you may be, in some cases medications can interfere with contractions and prolong labor.
Some people describe the feeling as being like intense period cramps, others say it feels like a tightening or pounding feeling in your uterus or across your belly, others describe the feeling as being like very intense muscle cramps, while still other people describe contractions as being like the sort of wrenching ...
During the third and final phase of labor, called transitional labor, your cervix will dilate to 10 centimeters as you experience strong contractions about every two to three minutes, though it can vary.