The walls of the ventricles widen, which causes mummies-to-be hearts' to increase in length and width

According to an obstetrician, taller women are more likely to have twins due to an insulin-like growth factor

with nothing to do, couples seem to be doing it more, with more bundles of joy as a result

We are unable to hear them, but it is a rather distressing thought

A baby is protected by amniotic fluid and the uterine muscles and therefore won't be harmed or poked (although slight jostling can occur)

It was invented by an English obstetrician named Ian Donald and a Glaswegian engineer named Tom Brown

In 2019, 10.4 billion dollars were spent on maternity wear worldwide. That number is expected to grow to 13.7 billion by 2025

That's about 500 times its original size! Really puts eating for two into perspective

Unfortunately, infant mortality is also higher among boys in most parts of the world

However, the accuracy of the tests range from 70-95% (so there's a chance you might buy some pink baby clothes only to end up with a little boy)

The little kicks tend to begin between the fourth and fifth month of pregnancy

That's over a year. The prodigious pregnancy occurred in 1945

On the flip side, many women experience hair loss after giving birth

Ray and Diane's baby is somewhere in that percentage, but they couldn't be happier to be expecting (most of the time)

They also then drink the pee. Yep.

And that's regardless of whether they play for Liverpool or not

Unlike true labor, Braxton Hicks usually aren't painful and tend to taper off after a time

Just don't trust them not to fart in the tub (especially if they're experiencing pregnancy wind)

The term was used in Nicholas Monserrate's novel Cruel Sea, though variations of "bun in the oven" may have begun as far back as the 17th century

This phenomenon tends to occur in the first trimester of pregnancy (women with a heightened sense of smell also may have more severe morning sickness)

That's about 21% of the population. In the UK this year, Grandparents Day will be celebrated on Sunday, October 3rd