Longest interval between birth of twins (2024)

FAQs

Longest interval between birth of twins? ›

The longest interval between the birth of twins is 90 days, in the case of Molly and Benjamin West, dizygotic (fraternal) twins born in Baltimore, Maryland, USA to parents Lesa and David West (all USA) on 1 January and 30 March 1996.

Some actual twins have different birthdays due to one being born on one day and the other staying in the womb for days or weeks longer. According to the Guinness World Records, the longest interval between the birth of twins is 90 days.

The median twin-to-twin time interval was 19 min (range 2–399) with 217 (41.2%) of the second twins being born within 15 min, 143 (27.1%) second twins were born within 16–30 min, 70 (13.3%) within 31–45 min, 37 (7%) within 46–60 min and 60 (11.4%) after 60 min.

A little more than half of twin pregnancies end in preterm delivery (before 37 weeks). While 40 weeks is the full gestation period of the average pregnancy, most twin pregnancies are delivered at approximately 36 weeks (range 32-38 weeks depending on the type of twin pregnancy).

Such a long interval between twins is rare, but not unheard of. (The world record — twins born 87 days apart — was set in 2012). But it's not just the separate birthdays that set these twins apart — it's the fact that each one gestated in a separate womb.

However, depending on the time of day the babies are born and how long the timespan is between each baby's birth, twins can be born on different days. Twins are defined as two offspring born together, but that doesn't necessarily mean they are born on the same date.

these twins were conceived the same day but born 10 years apart!

(Identical twins come from a single fertilized egg that splits in half, while fraternal twins occur when two different eggs are fertilized simultaneously). So, how many months apart are Irish twins? It's technically possible for two siblings to be as close as 9 or 10 months apart.

In 2019, a 73-year-old Indian woman gave birth to twins following IVF treatment.

Twins Aylin and Alfredo Trujillo entered the world just 15 minutes apart at Natividad Medical Center in Salinas, California. But because of the unique timing, they were born on different days, months and years.

What month are most twins born? ›

Rate of twin births in the U.S. in 2020 and 2021, by month

In 2021, the month with the highest rate of twin births in the United States was July with almost 33 twin births per 1,000 total births. This statistic shows the rate of twin births in the United States in 2020 and 2021, by month.

If you give birth to children who are at most 12 months apart, they're sometimes called “Irish twins.” It can be challenging to raise children with an age gap under a year, so it's important to understand each child's needs.

In the other patient, gestation contractions started at 27+2 weeks, membranes of the second twin ruptured spontaneously, and the baby was delivered vagin*lly. The interval between delivery of the first and the second fetus was 16 and 64 days. No maternal morbidity occurred before or after delivery.

Little sister Souli Morris snuggles up next to big brother Seven Morris. The twins were born three minutes apart, but in different years. The hospital shared that the family is doing great and enjoying some well-deserved rest.

But other doctors at Los Angeles' Methodist Hospital found it incredible that Mrs. Hunter had been pregnant 375 days (instead of the normal 280) before her baby was born there last week; 375 days would be the longest pregnancy on record, topping the runner-up by about 58 days.

Superfetation involves two embryos that form during two separate menstrual cycles. With superfecundation, your body releases two or more eggs during the same menstrual cycle. Each egg is fertilized by sperm, which can be from the same or a different partner or donor.