1. Do your family have any history of twins?
Most people heard that twins run in the family line but its only half truth.
Of the factors that influence multiple birth, there is only one that could be identified as genetic or explained by family history: hyper ovulation.
Hyper ovulation is the tendency to release multiple eggs during ovulation, increasing the chances of conceiving dizygotic (or fraternal) twins. So, in families where the women have a gene for hyperovulation, genetics would sufficiently explain an increased presence of fraternal twins.
2. Are they Identical?
There is no established connection between genetics and monozygotic (identical) twinning. Scientists haven't really identified and confirmed a clear cause for monozygotic twinning, which occurs when a fertilized egg splits and develops into two (or more) embryos. In short, identical twins don't run in families. The splitting of a fertilized egg seems to happen at random. A woman who is an identical twin is no more likely to give birth to twins than anyone else
3. Are they Natural?
In the last ten years, a large number of twin and multiple births can be attributed to fertility treatments: fertility drugs and invitro procedures. They can be simply taking Clomid, going through an IUI or and IVF.
* One very big misconception by most people is the assumption that all these treatments will result in a very high percentage of pregnancy success. Little do they realise that even treatment like IUI only offer success of about 6% and IVF about 25% even for the not too old.
So how do I answer them?
1. Do your family have any history of twins?
I will take a deep breath and explain in my own version...
About 2-3% of births result in twins of which they can be Fraternal or Identical. Fraternal twins means 2 eggs, 2 waterbag and Identical twins means 1 egg split into 2 and in 1 waterbag. Identical Twins are purely by luck but fraternal can possibility be due to genes though many a time are not because of that.
Then the next question will surely follow:
2. Are they Identical?
I will say that they are fraternal. They look different.
Some will try push through and ask the final question...
3. Are they Natural or you went for... Ehh... some treatment
Do they look natural or plastic? To me, they are real...
To be very honest... I don't like to answer all these questions but most people will still ask... I probably will in the past too and hence I don't blame them.
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