Spontaneous vs. "Assisted" Twins?

Not that it really matters, but out of curiosity, does anyone know if "they" keep track of what the percentage of twins are spontaneously/naturally conceived versus conceived with the help of fertility drugs/IVF/etc.?

 

i have no idea, sorry. My ID twins were spontaneous.


35W2D mono/di boys

 

Who is "they"? ardon:

 

i also have no idea. i have spontaneous mono/di identical twin boys on the way. no prior history of twins on either side of the families either.

 

No clue - Spontaneous on both of my sets, ID girls 1st time and fert girls this time.

 

Spontaneous fraternal twins, no family history and no maternal age (35+). You better make a poll if you want to get some "Twinstuff" statistics.

 

I don't really know who "they" are either...I guess the medical community? Just curious if there was some kind of breakdown...with the rise in fertility treatments, the rate of multiples has risen...I was just wondering if there was some estimate of a break down of what the twin rate was for each type. Again, not that it matters, just curious...

(mine were conceived via good old fashioned sex...and boy were we shocked!)

 

Hi! Mine are di/di fraternals, boy and girl. They were conceived the old fashioned way..... I am 34, so this may have added to my chances.

 

sounds spontaneous is winning out on this thread. Our were a total shock with no prior history done the old fashioned way too.

 

mine were spontaneous ID twins.

 

Mine were spontaneous and a total shock.

 

Mine were spontaneous!

 

QUOTE(monodigirls @ Mar 31 2009, 12:17 AM) [snapback]1251746[/snapback]
Mine were spontaneous!

Mine are spontaneous too, must be something in the water these days!

 

Spontaneous also... My sister has identical twin girls who are 23 months!

 

Ok, girls let me put the first Fertility twins here.
we did IVF and end up with Fraternal twins.

 

We didn't get to enjoy it the old fashioned way either!! We did IVF and have fraternal twins on the way!

 

+1 to Spontaneous old fashioned way
+1 to something being in the water :lol:
+1 to maternal age (I'm 34 years young)
+1 to beign shocked

 

QUOTE(faerieprncs @ Mar 30 2009, 10:30 PM) [snapback]1251572[/snapback]
Just curious if there was some kind of breakdown...with the rise in fertility treatments, the rate of multiples has risen...I was just wondering if there was some estimate of a break down of what the twin rate was for each type.



I haven't seen an actual breakdown w/ figures - would be interesting, tho. Pretty much everything I've read says that frat twins odds are affected by fert treatments, maternal age, ethnicity, genetic history of multiples, and other things. They are also more common than ID twins. ID twins - "they" say - are more of a medical mystery that just kind of "happen." "They" have no clear answers why some eggs split. But I've seen plenty of women here w/ twins who have multiples in their family history, so who knows.

As for me and mine - POOF! Spontaneous as can be mono/di.

Eve

 

our twins were concieved on birth control pills so i guess we are o natural

 

QUOTE(TwinLove @ Mar 30 2009, 08:07 PM) [snapback]1251238[/snapback]
Who is "they"? ardon:

Good question.


I don't think so because I did not have to fill anything out like that (meaning how they were conceived) when my twins were born, so not sure how "they" could.

 

both sets were fertility treatments here ... one set mine, one set my sister's.

 

I have spontaneous frats. .

I have been thinking about this same thing lately. . .How many sets of twins are spontaneous these days?

It seems like quite a few from the answers here.

 

Spontaneous mono/di twin girls on the way here too. Shocked......yep!

 

Spontaneous frats here too!

 

Spontaneous di/di identical boys. No prior history of twins in the family.

 

DH & I were wondering about this the other day. Lots of spontaneous twins it seems. We were "guessing" that fertility treatment mamas accounted for more than 50%.

As for us? We've got IVF fraternals on the way!

 

Each RE clinic keeps its own records or stats.
But even those records are flawed.
For example: let's say I do an IVF cycle with my RE and he confirm two heartbeats and releases me to my OB. Let's say at some point during the pregnancy one twin does not survive, leaving a single birth. The RE stats (unless I call to tell him otherwise) will reflect a live twin birth, and the OB's record will reflect a live singleton birth.

Compound this with the fact that some women may not tell their OB that they had assitance - I know it sounds impossible and stupid but stuff like this does happen.

So you'd really never know.

Also, if THEY (probably the Bureau of Vital Statistics) took some sort of national poll (which right off the bat is not only impossible but incredibly flawed) a whole bunch of people would lie and say they were spontaneous when they actually were 'assisted'.

Still too much of a stigma, although I don't understand why....

So I say take any poll with a grain of salt - it depends on the data - garbage in, garbage out, KWIM?
But it's still a good question that I'd be interested in knowing the REAL answer to!!

 

QUOTE(hot2trottt4u @ Mar 31 2009, 08:07 AM) [snapback]1252008[/snapback]
our twins were concieved on birth control pills so i guess we are o natural

Mine were concieved on the pill too! I think it had something to do with the egg splitting. But yours obviously aren't identical so I don't know. I guess God just has his plan

 

I have heard that identical twins are spontaneous and fraternal twins are genetic which explains why I have no twins in my family and I'm having mono/di girls.

 

Spontaneous identical di-di girls.

 

My daughter is expecting fraternal twins. She did have fertility treatment but not IVF. She took femara, Gonal F injections and doctor administered HCG trigger shot to stimulate ovulation and then they were told to have "Old Fashioned Sex" Lol!!

 

Here are some stats that I am aware of

1/90 -Pregnancies result in fraternal twins w/o fertility meds
1/250 - Pregnancies result in identical twins with or w/o fertility meds

1 in every 30 pregnanices now results in twins and this is due to medical advancements in reproductive technology. The number of pregnancies that results in identical twins has remained the same as this has nothing to due with medication/IUI/IVF etc.

 

Here is a website with a lot of statistics. I don't know how accurate they are but there's a lot of information.

http://www.mommiesmagazine.com/statistics-...multiples/124/#

 

NO clue on the 'they', but I think my RE and OB's office may keep their own stats??

My frat. twin girls are the proud product of luck & Clomid/IUI :good:

 

QUOTE(lorin @ Mar 31 2009, 10:05 AM) [snapback]1252225[/snapback]
I have heard that identical twins are spontaneous and fraternal twins are genetic which explains why I have no twins in my family and I'm having mono/di girls.


Fraternals are not necessarily genetic. I have spontaneous frats with no family history of twins.