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Due Dates are not an expiration date....
- Feb 4, 2009 at 5:44 PM
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When you find out you are pregnant you tend to go to the doctor/midwife. They will either base your *due date* on your Last Menstrual Period or an ultrasound depending on where you go, how early you are etc. The date you are then given is called an estimated due date, isn't the EXACT date you HAVE to have your child by. It's a guess. Even if you *know* the date you conceived the date you come up with, the 39 weeks later, is still just a GUESS.
Our bodies don't expire 39 weeks after we get pregnant. Human gestation is naturally 37-42 weeks. You are not overdue until AFTER 42 weeks. Not the day after your EDD, but after that 42 week mark. The EDD is just the happy medium for doctors, because 39 is apparently in the middle of 37-42 lol...
I don't understand the look of shock when a women is 42 weeks pregnant, like her baby is going to die. I mean, really. You can safely carry a baby past 42 weeks. There is no need to "evict" the baby because they didn't arrive on your EDD. While it sure is uncomfortable, what difference does a few weeks make?
Being 42 weeks is not a death sentence, our babies are not in jeapordy, our bodies aren't going to give out on us... we may be huge, and tired, and uncomfortable, but we most definitely haven't expired!
To add to this: every week of pregnancy counts! Not only can due dates be off by 2 weeks, but the brain is still developing!
By MELINDA BECK
This time of year, some hospitals see a small uptick in baby deliveries thanks to families eager to fit the blessed event in around holiday plans or in time to claim a tax deduction. Conventional wisdom has long held that inducing labor or having a Caesarean section a bit early posed little risk, since after 34 weeks gestation, all the baby has to do was grow.
But new research shows that those last weeks of pregnancy are more important than once thought for brain, lung and liver development. And there may be lasting consequences for babies born at 34 to 36 weeks, now called "late preterm."
New research shows that the last weeks of pregnancy are more important than once thought for brain, lung and liver development.
A study in the American Journal of Obstetrics and Gynecology in October calculated that for each week a baby stayed in the womb between 32 and 39 weeks, there is a 23% decrease in problems such as
A study of nearly 15,000 children in the Journal of Pediatrics in July found that those born between 32 and 36 weeks had lower reading and math scores in first grade than babies who went to full term. New research also suggests that late preterm infants are at higher risk for mild cognitive and behavioral problems and may have lower I.Q.s than those who go full term.
What's more, experts warn that a fetus's estimated age may be off by as much as two weeks either way, meaning that a baby thought to be 36 weeks along might be only 34.
The American College of Obstetricians and Gynecologists, the American Academy of Pediatrics and the March of Dimes are now urging obstetricians not to deliver babies before 39 weeks unless there is a medical reason to do so.
"It's very important for people to realize that every week counts," says Lucky E. Jain, a professor of pediatrics at Emory University School of Medicine.
It's unclear how many deliveries are performed early for nonmedical reasons. Preterm births (before 37 weeks) have risen 31% in the U.S. since 1981 -- to one in every eight births. The most serious problems are seen in the tiniest babies. But nearly 75% of preterm babies are born between 34 and 36 weeks, and much of the increase has come in C-sections, which now account for a third of all U.S. births. An additional one-fifth of all births are via induced labor, up 125% since 1989.
Are parents too eager to induce labor or schedule an early C-section for sheer convenience? Are doctors too willing to go along?
Many of those elective deliveries are done for medical reasons such as fetal distress or pre-eclampsia, a sudden spike in the mother's blood pressure. Those that aren't can be hard to distinguish. "Obstetricians know the rules and they are very creative about some of their indications -- like 'impending pre-eclampsia,'" says Alan Fleischman, medical director for the March of Dimes.
Why do doctors agree to deliver a baby early when there's no medical reason? Some cite pressure from parents. "'I'm tired of being pregnant. My fingers are swollen. My mother-in-law is coming' -- we hear that all the time," says Laura E. Riley, medical director of labor and delivery at Massachusetts General Hospital. "But there are 25 other patients waiting, and saying 'no' can take 45 minutes, so sometimes we cave."
There's also a perception that delivering early by c-section is safer for the baby, even though it means major surgery for the mom. "The idea is that somehow, if you're in complete control of the delivery, then only good things will happen. But that's categorically wrong. The baby and the uterus know best," says F. Sessions Cole, director of newborn medicine at St. Louis Children's Hospital.
He explains that a complex series of events occurs in late pregnancy to prepare the baby to survive outside the womb: The fetus acquires fat needed to maintain body temperature; the liver matures enough to eliminate a toxin called bilirubin from the body; and the lungs get ready to exchange oxygen as soon as the umbilical cord is clamped. Disrupting any of those steps can result in brain damage and other problems. In addition, the squeezing of the uterus during labor stimulates the baby and the placenta to make steroid hormones that help this last phase of lung maturation -- and that's missed if the mother never goes into labor.
"We don't have a magic ball to predict which babies might have problems," says Dr. Cole. "But we can say that the more before 39 weeks a baby is delivered, the more likely that one or more complications will occur."
In cases where there are medical reasons to deliver a baby early, lung maturation can be determined with amniocentesis -- using a long needle to withdraw fluid from inside the uterus. But that can cause infection, bleeding or a leak or fetal distress, which could require an emergency c-section.
Trying to determine maturity by the size of the fetus can also be problematic. Babies of mothers with gestational diabetes are often very large for their age, but even less developed for their age than normal-size babies.
Growing beyond 42 weeks can also pose problems, since the placenta deteriorates and can't sustain the growing baby.
Making families aware of the risks of delivering early makes a big difference. In Utah, where 27% of elective deliveries in 1999 took place before the 39th week, a major awareness campaign has reduced that to less than 5%. At two St. Louis hospitals that send premature babies to Dr. Cole's neonatal intensive-care unit, obstetricians now ask couples who want to schedule a delivery before 39 weeks to sign a consent form acknowledging the risks. At that point, many wait for nature to take its course, says Dr. Cole.
Comments:
This may come as a shock to you, but I actually agree with you on this one. I never understood why women would run to their doctor a day after their due date, demanding to be induced... Due dates are never 100% accurate, and how many women actually go into labor on their exact due date anyway? Not too many, I'm sure...
My baby actually came 3 weeks early, but I had every intention of not even THINKING about induction till after week 42.
This part:
what difference does a few weeks make?
needs attention because a few weeks can and most certainly DOES make a HUGE difference, especially if dates are off. That could mean having a 36 week baby instead of a 39 weeker, this can mean NICU, breathing issues, growth, and other development issues that can last a lifetime.
Doctors DON'T know everything, and they certainly don't know for sure how big your baby is, or if it's truly ready to be born. They can only hope they are right and YOU (and baby) take the risk.
Just had to add that.
NoNonsenseMama, even though you are correct in what you're saying, I think the point the OP was making is going in the OTHER direction. As in, if you're 40 weeks, how bad would it be to wait another week or so?
Oh yes, I'm very clear on what Shanna means, as our views on this subject couldn't be more similar. :)
Oh katie sorry I mean negatively what difference would holding out a few weeks make. I do need to add the part about the brain development the last few weeks. I was simply thinking about the "i am uncomfortable" excuse etc.. You have already gone this far, what difference does it make to hold out a couple extra weeks.
I have edited my post :)
hee hee hee
I wrote something simular to this a while back:
Stressing about Due Dates
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Very true! Not only that, but the risk of stillbirth doesn't go up until AFTER 43 weeks!
- TanyaR1024
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