24.11.2013

Overdue pregnancy and conception date

Aside from the gross miscalculation of the lunar due date, there is another common problem associated with formulating a woman's EDD: most methods of calculating gestational length are based upon a 28 day cycle.
One of the most vital pieces of information to know when you are expecting is that ACOG itself (American College of Obstetricians and Gynecologists) does not recommend interfering with a normal pregnancy before 42 completed weeks.
Misha Safranski is a freelance writer and mother of five, specializing in natural birth, VBAC advocacy, and cesarean prevention issues. Maintaining the highest standards of clinical practice and continuing education for its members.
Promoting patient education and stimulating patient understanding of and involvement in medical care.
Increasing awareness among its members and the public of the changing issues facing women’s health care. If pregnancy goes past 42 weeks, a baby has an increased risk of certain problems, such as dysmaturity syndrome, macrosomia, or meconium aspiration. Biophysical Profile—This test combines the results of electronic fetal monitoring and an ultrasound exam. For more on what ACOG says about due dates, you can read their Education Pamphlet (you could even print it off for your OB).
I went to 43 with my baby, trusted my instincts and would have changed anything about my choices made in my birth! As a Doula, I am frequently discussing this subject with friends and clients, and I always watch them become impatient and frustrated at 40 weeks 1 day, often calling their doctors to ask if they can be induced. Maybe it runs in families…some women might be from families who birth earlier than others, and some from families that birth later. I was completely set to go past my date, like wasnt even worried about it at all, lol…usually I guess its the other way around. My second baby was born 10 days early, because I was not that healthy and the placenta couldn’t nourish him anymore. One of the most common fears my childbirth class students have is being pressured into an induction because they’re pregnant after their due date. Unless you became pregnant after an IVF procedure, chances are your due date is calculated based upon the date of your last menstrual period. Doctors and even midwives are often doubtful that a woman could know when she conceived (outside of IVF), and many women actually don’t know when they conceived.
The problem with using the start of the last menstrual period to date a pregnancy is that it assumes ovulation occurred on Day 14 of your cycle, which is not always true. Human pregnancy is calculated to be 280 days long because it’s rounded off to exactly 40 weeks. Note that those women are still going past 40 weeks, but very few past 42 weeks, the point at which most doctors insist on induction and many midwives find their regulations prevent them from attending your birth. But one of the most clear and present dangers of the due date is the enormous pressure it puts on mothers. Many mamas want a natural birth and know that induction can and does lead to multiple interventions, including increased risk of cesarean section5. Oxytocin receptors on the uterus, and levels of the hormone, build steadily throughout pregnancy, and high levels of both receptors and the hormone itself are an integral part of the hormonal orchestra that is human labor.
When you’re feeling pressured and stress and anxiety build, it shuts off the calm and connection system, which essentially cuts off oxytocin. Just the pressure of having to go into labor by a certain date can prevent labor from starting by that date! When you do acknowledge that inducing labor is dangerous to mother and baby, the decision to induce for postdates becomes balancing the risks vs. In fact, one of the two common complications with postdates pregnancy is macrosomia, which means that baby is very large.


Each situation deserves individual care – and we know that a healthy, well-nourished mother has a placenta that can function well even after 41 weeks, and careful assessment after 42 weeks with informed choices leads to the best outcomes for mothers and babies. I could give you a long list of things to try, like walking up and down stairs, making love, cleaning your floors, etc.
I encourage my students to read all that they can about the dangers and effects of induction, and to examine the realities of the length of pregnancy.
The "due date" we are given at that first prenatal visit is based upon that 40 weeks, and we look forward to it with great anticipation. Not all women have a 28 day cycle; some are longer, some are shorter, and even those with a 28 day cycle do not always ovulate right on day 14.
This is why knowing your true conception date and EDD is very important; if you come under pressure from a care provider to deliver at a certain point, you can be armed with ACOG's official recommendations as well as your own exact due date. I wanted to find out and they indeed have their recommendations and opinions on post dates in a handout here. It looks at the baby’s heart rate (using the nonstress test) and estimates the amount of amniotic fluid. I was so scared of something happening to him and made the decision to be induced and abandoned our plans for a homebirth.
We finally caved at 42 weeks and three days, induced, didn’t progress, had a Cesarean, and have regretted it ever since.
Remember though, especially if you are a first-time mama who is getting on past her due date (I can relate – I went to 41 weeks, 3 days with my first!), that going past your due date is pretty normal.
Remember that we still don’t understand exactly what causes labor to begin or progress, and there is much that happens that we can neither see nor even imagine. When we are still pregnant after that magical date, we call ourselves "overdue" and the days seem to drag on like years. The formula was publicized around 1812 by German obstetrician Franz Naegele and since has become the accepted norm for calculating the due date.
If a woman has a cycle which is significantly longer than 28 days and the baby is forced out too soon because her due date is calculated according to her LMP (last menstrual period), this can result in a premature baby with potential health problems at birth. This can help you and your baby avoid much unnecessary trauma throughout the labor and delivery. I would like to take a look at it and break down what is recommended to OB’s when it comes to due dates of pregnant women and babies.
Very few babies are born ON their due date, because it’s just an EDD…ESTIMATED due date! If we made it to that date, I could have her at anytime after that point and her lung development, etc, would be fine. Being informed of what is a reason to not have a home water VBAC and what is not a reason to abandon it is good! With my first I was at 40 weeks 2d, and all natural, and w second, I was induced at 41 weeks 1d. I have *no* reason to believe that I will go post dates (my daughter was induced early due to pre-e, but my son came two days before his due date), but as this is my third and final pregnancy I want to do my best to have a completely intervention free experience this time. Unfortunately the placenta had shattered and had to be removed by hand after the birth – incredibly painful and potentially dangerous. However, my OB was on-call on my due date and scheduled an induction for me and told me to show up on my due date at the hospital. The placenta does grow and change (just as your baby does), but it shows no evidence of being unable to supply the baby with proper nutrients. They’re important throughout your life, and especially to your fertility, pregnancy, and birthing. It may be that your baby needs longer, that you need longer, and that many unseen changes and processes are happening13.


They found that for first time mothers (nulliparas) pregnancy lasted an average of 288 days (41 weeks 1 day). Remember, babies can't read calendars; they come on their own time and almost always without complication when left alone to be born when they are truly ready. A due date is not the exact day your baby must be born by, it’s just a guide to know around when baby will be ready to be earthside.
ACOG states though that although there is a tiny increase past 42 weeks, that risk is very small and most women who give birth after their due date do in fact have healthy babies.
These are called electronic fetal monitoring and include nonstress test, biophysical profile, and contraction stress test.
I made a complaint to the hospital and was told I was not the only one to complain about him. She went into labor just in time and we were both just fine though I weighed a nice big 11lbs. Amniotic fluid is produced independently of the placenta, and it is theorized that the low volume of fluid may cause blood flow issues between placenta and baby (not the other way around, with the placenta causing the fluid problems). A baby with congenital abnormalities is also more likely to be stillborn and it is the developmental problems that contribute to that.
Keep those things in mind and make the decisions that you feel are right for you and your baby – chances are your instincts are right on. Oxytocin helps you relax and enjoy your pregnancy, and it primes your body for labor to begin. Know that in most cases, your baby knows the perfect time to be born – and will be born then.
It is one of many pregnancy and childbirth myths which has wormed its way into the standard of practice over the years-something that is still believed because "that's the way it's always been done".
Talk to your care provider about different methods to check due dates including basing it off of your last menstrual cycle, your date of ovulation, an ultrasound (earlier the better) and the Naegele’s Rule. ACOG even says that first time mamas or other women who have previously had postterm pregnancies prior may in fact give birth later than expected!!!
The pregnancy crisis center (where I had my initial test) and the health clinic picked the other two.
I really had to fight an induction with the second pregnancy (I agreed to biophysical profile to reassure the OB) and people at work thought I was crazy for being there at 41 weeks. I tried to push off every strong suggestion to induce and at 43 weeks I was hooked up to pitocin and just like all the stories I had read one thing led to another and 10 hours later I was getting prepped for surgery. Do things that increase your comfort and relaxation and you may help encourage labor to get going. At 40 weeks I took my husband with me for solidarity and prayed in the waiting room for a good midwife.
Once again, placentas are going to do their job and while there may be a small risk of lower fluid and the other problems listed past 42 weeks, this is where you can talk to your doctor or midwife about keeping a closer eye on baby if that is what you are comfortable with. The best way to determine an accurate due date, no matter which method you use, is to chart your cycles so that you know what day you ovulate. I came home 7 hours later and am so glad I listened to ME, however I think I will try and skip the hospital all together the next time!



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Comments to «Overdue pregnancy and conception date»

  1. IDMANCI writes:
    Regain all her energy and appetite that women who usually tend to have a miscarriage blood strain.
  2. Rashadik writes:
    Days, then she might ovulate you just should not have any "wardrobe malfunctions." Maternity suits.