Ok, you’ve missed your period. You’re pregnant.When is the baby due? It’s a really important question. I’m going to tell you how you canfigure out your due date. I’m Jill Hechtman, from Tampa, Florida To begin, when you’reat home, you can follow this simple little rule, to kind of get an idea of when yourbaby is due. That’s called Nagel’s Rule, and what it is, is you take the first day of yourlast menstrual period, go back three months, and add seven days. This will give you yourapproximate due date, for when the baby is born. This is not exact, but it will kindof give you an idea. The way we figure out, in the ‘s office, how to figure thisout, is we do ultrasound, and take a history.
We usually use the first day of your lastmenstrual period, and use a pregnancy calculator, to figure out that day. That, in conjunctionwith ultrasound, gives us within a two to three day period, if done in the first trimester,of exactly when your baby is due. I’m Jill Hechtman, from Tampa, Florida, tellingyou how to figure out your due date.
What is My Due Date
Due Date Calculator. Pregnancy Due Dates. Forty weeks has becomethe standard gestational (gestation means time baby is in utero) length for humans.Why? There was a dude a German obstetricianFranz Karl Naegele (in the 1800’s) came up with a method to determine a woman’s due datebased on her last menstrual period (LMP). Essentially the dealio is this:(DO THIS ON THE WHITEBOARD) Take your last menstrual period.(August 13th, 2013) Subtract three months(May 13th) Add 7 days.(May 20th, 2014) EDD
Voila, you’ve got quot;the datequot;But what if you don’t have a 28day cycle? What if you ovulate on different days of themonth? Rut row! Naegele, in all his Germanness, didn’t factor these in. quot;Houston, we havea problemquot;. with the Naegele Method, because bottom line, it assumes every woman has theirperiod ovulates with German engineering precision. AND WE DONquot;T.The other assumption made by our German friend Franz, is that pregnancy lasts 280 days.How we got to this number is interesting. 40 weeks is the midpoint of the quot;normal rangequot;of a quot;normal pregnancyquot; there have been studies across the world on this.So if you were to look at a bell curve of
women and when they give birth, it would looksomething like the illustration below. (WHITEBOARD ILLUSTRATION)40 weeks would be at the top of the curve with an equal number of women giving birthbefore after 40 weeks (an easy way of saying a normal standard deviation). A pregnancyis considered quot;full termquot; anytime 2 weeks before 2 weeks after that 40 week midpoint(3842 weeks). In other words, 40 weeks is not a magic number. Since each woman baby are unique, it makessense the development and ‘readiness’ of each baby will differ will vary by as much as2 weeks on either side. We should expect a
normal 2 week variation of when births occur. French Obstetrician, author birth expert, Michael Odent is famous for his analogy of labor birth to a fruit tree. The healthydevelopment readiness of babies don’t all perfectly happen at the same exact time justas all the fruit on a fruit tree doesn’t just miraculously ripen at the same time he likesto say (in his killer French accent) quot;you wouldn’t pick Zem all on zee same day wouldyou?quot; Fruit Trees Babies.Huh? Why does thismatter to me anyway? Think about the babies you know (heck thinkabout any kid or even adult you know). They
reach milestones at different ages. Like rollingover, or scooting, or crawling. Eventually they start pulling themselves up on tablesand couches.inevitably taking their first step when they’re ready. If you did an informalsurvey of your friends’ kids, you’ll see not every child hits these developmental markersat the same time or in the same way. Each baby is different. For lots of reasons. You don’t see parents buying their baby quot;babywalkersquot; to expedite their learning to walk at the 11 month mark. Yet this is preciselywhat we’re doing with babies in utero when we induce for no medical reason (unlike inducingfor medical reasons like preeclampsia means
mom has high blood pressure, etc.). Inducinghas risks to baby. A growing number of s experts willtell you that inducing birth before ‘ weeks is dangerous. It’s dangerous for babies theirdevelopment cause check this out Lucky Jain a neonatologist shared with me that duringthe last 2 weeks baby is in the womb, there’s a big time surge of brain development, lungdevelopment and maturity of organs, which is critical to baby’s health at birth, andas they grow. Evidence here. Something to think about.If due dates aren’tan exact science (research shows they’re not, if each baby develops uniquely at differentrates in the womb if science tells us there