What are my odds of having twins if my sister did?

Answer by  ewilliamsuk (33)

According to research, the odds of two sisters having twins are approximately 1 in 80 pregnancies. This is if both pregnancies were conceived naturally without any medical intervention. The odds of two sisters being pregnant at the same time with twins are around 1 in 6,000 - 7,000 pregnancies.

Answer by  Rose (6804)

If your sister had identical twins then you have the same odds as anyone else as it is a fluke and not determined by genes etc. However if your sister had fraternal twins your chances are significantly higher than those who do not as this is considered to be passed down.

Answer by  andaman (240)

I think this is a case just like flipping a coin... the odds of one toss are not affected by the preceding or following coin tosses. Each pregnancy has a slight chance of resulting in twins, and the chances are low (unless you are using some fertility techniques)

Answer by  PfcxFlynn (19)

Your odds of having twins do not increase, nor do they decrease if your relative (sister) gives birth to twins.

Answer by  Anonymous

I am one of 7 kids - all single births. Me and two of my sisters each have twins - three sisters all have twins.

Answer by  Anonymous

i had identical twin girls and now my sister is having fratnal twins what are the odds in that