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Rita Arens authors Surrender, Dorothy and Surrender, Dorothy: Reviews. She is BlogHer.com's senior editor.  Her parenting anthology and BlogHer'...
 
 
 
 

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Pregnancy! It's a Big, Fat Surprise!

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Julia Grovenburg is pregnant with Jillian.

And Hudson.

And they weren't conceived at the same time.

But they might be born at the same time.

But if they were actually born on their due dates, they'd be born in different years. One this year, one in 2010.

It's called "superfetation."

My head hurts.

HOW DOES THAT HAPPEN?

Apparently, it happens all the time to rabbits.

And it wouldn't be so much of a problem if they could pop out one at a time, but I'm guessing once you start expelling objects from your womb, it pretty much empties. Thank goodness in the case of the Grovenburgs, Jillian and Hudson are only about 2.5 weeks apart, so chances are good Jillian could hang out for an extra week or Hudson could be born a little early and everything would be okay.

When I was pregnant I was amazed at how much of it was guesswork on my doctor's part. With all the technology and medical advances, it's very difficult to predict anything about human gestation. Once you're pregnant, all you know is that you're going to give birth somehow, someway.

From the blog associated with Vital Records search (random!):

Apparently, this is called superfetation. ‘Super’ indeed. Other more common reproductive surprises include:

Multiples – “Yeah, you know how you were getting ready for one baby? Well, you’re having eight. Isn’t that wonderful?” As a father of twins, I can tell it is wonderful… after three long years of sleeplessness and high stress.

Gender Oops – “You know how you bought all those pink onesies and painted the room pink and bought the entire Barbie collection? Well, it’s not a girl after all. Of course, that means it’s a boy.” Despite advances in ultrasound tech, this continues to happen.

In other surprises, Jeanne Sager writes at Strollerderby about a woman in Indonesia who gave birth to a 19-pound baby boy. OW OW OW OW OW

Which then brings me to the age-old question of whether or not you can get pregnant during your period. According to Carolyn Kubik, a fertility specialist at BabyCenter, um, yes.

Typically, when you have your period, another egg is developing in preparation for release during the current cycle. But not every woman's cycle length is the same. Many women have a cycle that's about 28 days long, but some have cycles as short as 22 days long. If you have a shorter cycle, you could ovulate just a few days after you have your period. And considering that sperm can survive in your reproductive tract for up to three days, it's theoretically possible for the sperm to hang around until you ovulate again.

Did you have any surprises when you gave birth?

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Swistle 5 pts

I would be interested to know how super-fetation is diagnosed.  I can see it if someone gets pregnant with a second months after the first is conceived, but only 2.5 weeks' measurement difference?  When I had ultrasounds, the measurements were +/- a certain number of days/weeks to account for the inaccuracy of ultrasound---and when the twins were born, they were 1-2 pounds heavier than estimated at the ultrasound, so it's not very accurate or precise.  Also, at birth, one "tested" 37.5 weeks and the other "tested" just under 36 weeks---again, it's a matter of tests not being accurate only in a +/- kind of way.  Is there something special in this situation that just isn't mentioned in the story?

AmberS 5 pts

My first child was born 6 weeks early, which was a big surprise. I woke up at 5am one Saturday when my water broke, and thought I must have wet the bed. Because what else could it be? The fact is that we just do not know how any particular birth will play out.

But that was not really my point. My point is that I have 2 major fears surrounding pregnancy. One is that I will be pregnant for a length of time and not know it. The other is superfetation. Both rather unlikely, but the thought of either is enough to make me break out into a cold sweat.

~ Amber

www.strocel.com ( http://www.strocel.com )

Gidge 5 pts

When I was pregnant with my twins - at my first ultrasound - at about 11 weeks - they measured the twins and one was "five days" behind in measurement size - and their opinion was that they were fertilized five days apart. 

Gidge

I blog at Live From The Wang of America ( http://livefromthewangofamerica.blogspot.com/ ) !

aftercancer 5 pts

but I think that the Grovenburg family is going to have twins. This will not be widely announced in the media.

The likelihood of the pregnancy being superfetation is incredibly low and in most cases incredibly optimistic. What is more likely the case in this situation is that one of the twins either has a genetic problem that is hindering its development or it is a case of IUGR - Intrauterine growth retardation ( http://www.healthsystem.virginia.edu/uvahealth/ped... ). IUGR occurs quite frequently and it's results vary significantly.

Emotionally I am sure it is easier to have the thought that this is a freak of nature as opposed to something that happens all the time, often with negative results, but I really hope that someone has a conversation with this couple that is grounded in reality.

Kate

I blog at http://www.aftercancernowwhat.com