This is the ‘worst’ birth date of the year, according to mums

They prefer to be the only one doing Santa special deliveries during vacations.

Getting sick at the end of March can come as a not-so-pleasant surprise to expectant mothers who have considered Christmas the “worst” birthday date for children.

“The results are in, and 40% of moms said the worst of the worst birthdays is December 25,” revealed study authors from WhatToExpect.com, a virtual pregnancy and parenting hub.

“There’s a lot going on at Christmas,” the experts continued, “and many moms in the What to Expect community have voiced their complaints about late December birthdays in general.”

Give them a lump of coal – not just a bundle of joy.

But mothers-to-be are not grumpy Grinches.

Instead, they—like everyone else—are simply burned out from the holidays and can’t imagine adding childbirth to their already long to-do lists.

In fact, 89% of American adults are stressed out during what is supposed to be the most wonderful time of the year, according to a recent report from the American Psychological Association.

To sidestep some of the trauma of Yuletide, parenting professionals have advised moms and dads not to get overwhelmed with taxing tasks and put their personal needs last.

So ladies with mini buns in the oven are now ready to serve them up at the earliest possible opportunity, according to WhatToExpect.

The researchers, who surveyed more than 400 women, determined that a quarter, or 25%, of expectant mothers are open to having an induction or a caesarean section in order to avoid giving birth at Christmas.

But when asked whether they would plan their deliveries before or after Santa’s big day, respondents were split.

“Before,” argued a worried mom-to-be. “After the holidays, everyone is exhausted. I am being induced at week 39, and [I’m] going to [choose] the fastest date since my due date is literally Christmas Day.”

“I would choose if I could,” said another mother. “Everyone is so busy and stressed the week before Christmas.”

But Christmas time isn’t the only day that gets a big “X” on the calendar from expectant mothers.

February 29, or Leap Day, as well as New Year’s Day, Halloween, the anniversary of a loved one’s death and a sibling’s birthday also ranked high on the list of worst birthdays.

The findings echo Bo McCready’s chart of the least common birthdays in the US.

The Texas-based business developer crunched Social Security Administration data to determine that Christmas Day, New Year’s Day, Christmas Eve — and even the Fourth of July — are the rarest birthday dates across the country. .

“I also thought it was really interesting that 9/11 seems to be lower than the other days around it,” McCready previously told The Post.

According to his analysis, summer birthdays are much more common among people from sea to shining sea.

“When we look at births that peak in late summer,” McCready said, “we can support nine months and conclude that conception is more common during the holidays, when the days are the shortest and coldest.”