The Lie of the EDD: Why Your Due Date Isn't when You Think
How the 40 week pregnancy myth came about and why it's totally wrong.
http://www.associatedcontent.comarticle/1047180/the_lie_of_the_edd_why_your_due_date.html
This is a great article, but did it make any waves? Not much seeing as how I just received a link to it today, 10 June 2009 and it is dated 24 September 2008. Will women print it out, take it to their OBs, midwives, etc and demand that they recalculate their dates? I think a small minority might, and I will encourage my clients to do so as well.
I knew with my first child that the due date I was given could not possibly be correct. The nurse recording my information insisted on going by my LMP (last menstrual period) instead of by the date of conception. I had notoriously irregular periods and often skipped a month. How did I know the date of conception? I wasn't charting my temps and signs like I would later--the Army helped me out by taking my hubby to the field for lengthy periods of time. We had a 2 day window that we could have conceived and then he went back to the field for training.
I continuously measured a week or 2 behind my EDD, which with my first was given as 15 April 2001. My LMP was 21 July 2000. I figured conception to have occurred on 9 or 10 August. By using the method suggested in the article of taking LMP subtracting 3 months and adding 15 days my EDD should have been 6 May 2001(my guess was 10 May 2001). That's a difference of 21 days!!! Twenty-one days makes a huge difference in the health of a newborn. At my 40 week appointment I was told that the following week I would be induced. The more I thought about it, the angrier I was. How could someone else dictate when my child should be born? Why should I listen to them when I KNEW when we conceived and that instinct was telling me my baby wasn't ready yet? I decided to skip the induction. The hospital and the myriad of doctors I saw were angry with me.
On April 28th, 11 days before my best guess, I went into labor. My son was born on 30 April 2001, a healthy 8 pounds with lots of vernix (a sign he wasn't post-date).
With my next 2 pregnancies figuring out my dates was a bit more difficult. I experienced lactational ammenorhea--breastfeeding induced suppression of ovulation, no periods, bliss. I breastfed my son unrestrictedly (this is a whole other post) day and night. I did not ovulate until he was 14-16 months old, and we conceived the first time I did ovulate. This happened a 2nd time as well. I went 6 years and 9 months without having a menstrual cycle, and ovulated twice, both times resulting in the pregnancies of my girls. I loved the expression on the OB's face when I gave my LMP. He didn't even want to do the blood test, convinced that I could not have conceived. I was then referred to a midwife with pregnancy #2, and she was not surprised, estimated my due date by a physical exam, and was off by a day according to ultrasound.
My thought? Trust your instincts. If you are trying to conceive (TTC) chart carefully and be armed with all the information about due dates and risks of inductions when your OB or hospital-based midwife starts talking induction at your 40 week visit--trust me, it happens, I'm a labor doula and rarely do my clients go into labor on their own before 40 weeks, even 41 weeks. The standard where I live is to induce at 41 weeks+3 days--which is only 290 days, 2 days past the 288 number most first-time moms hit. The OBs and even the CNMs use scare tactics to get mom to induce at 41+3: "the placenta starts shutting down at 40 weeks (heard this yesterday from a client)" "risk of baby dying rises dramatically between 41 & 42 weeks"
Ladies, the bottom line is this--know your body, trust your body, stand up for yourself. If you feel uncomfortable with the date(s) your careprovider has given you, question it. If you don't like the answers or lack thereof, if your gut tells you to do some digging, find another careprovider who will listen to you.
I have a whole other rant I could go on about how birth is a natural process, but I'll save it for another day.