Debunking Twin Myths
Twins for Kate? The princess’s hyperemesis gravidarum (a condition worthy of further research) has led to speculation that she is having twins. It is true that a multiple pregnancy is associated with a 7.5% increased chance of HG. My own anecdotal evidence is a bit different — I had significant nausea and vomiting with both of my pregnancies, and it was actually worse with my singleton the second time around than my first twin pregnancy. But, people are speculating about where the royal baby was conceived, what the princess should eat, the name of the royal baby, the maternity styles we will see, so it is not surprising that our endless appetite for royal gossip on both sides of the pond has fueled twin talk.
With this speculation about twins, though, comes the misconceptions about twin zygosity and twin inheritance that have persisted (she could have twins because William’s uncle Charles has identical twins!), even among skilled medical professionals, even as twins have become much more common, increasing 76% over the past 30 years to 3.3% of births in the U.S. Continue reading Debunking Twin Myths