Nymphadora Tonks during her pregnancy

Pregnancy, also known as gravidity or gestation is the condition of having one or more unborn offspring developing inside the uterus. It usually lasts around 40 weeks from the last menstrual period and ends in childbirth. This is just over nine lunar months, where each month is about 29½ days.


Merope Gaunt

In 1925, Merope Gaunt gave Love Potion to Tom Riddle Snr, thereby forcing him to marry her.[1] A few months into the marriage, she became pregnant and stopped the doses of Love Potion, presumably because she believed that Tom had come to genuinely love her or would stay with her for the benefit of their child.[1] However, Tom came to his senses and left her, returning to his parents' manor in Little Hangleton.[1]

Destitute and alone in London, Merope sold Slytherin's locket, a valuable family heirloom, to Caractacus Burke at Borgin and Burkes for a paltry 10 Galleons shortly before Christmas in 1926.[2] On New Year's Eve, she found her way to Wool's Orphanage and had a baby boy less than an hour later, naming him Tom Marvolo Riddle after his father and maternal grandfather, Marvolo Gaunt.[2] An hour after the birth, she died of complications, refusing to use her wand when she could have saved her own life with magic.[2]

Tilly Monk

On 20 May, 1995, Tilly Monk gave birth prematurely to twin sons, Jack and Tom.[3] Delivered simultaneously as what their father Dave described as a "bundle," the boys received immediate medical care from "an amazing neonatal team," and were quickly taken to the Neonatal Intensive Care Unit (NICU).[3] Tilly did not learn the news of their birth until she "came around fully" several hours later (presumably from anaesthetic she was administered during a Caesarean section).[3]

Hospital staff gave the couple photos of both babies, which the new parents used to help choose names for the boys.[3] A few hours after waking up, Tilly was finally taken by Dave to see the twins in the NICU, where they were being kept in incubators, receiving vital fluids through intravenous lines and breathing with the help of mechanical ventilators.[3]

Tilly's husband later wrote an article about the twins' birth, which was published in the 12 August, 1995 edition of Metro.[3]

Lily Potter

"The one with the power to vanquish the Dark Lord approaches... born to those who have thrice defied him, born as the seventh month dies... "
—Prophecy of Harry Potter's birth[src]
Lily Potter1

Lily Potter became pregnant in the autumn of 1979. Around the same time,[4] Sybill Trelawney made a prophecy in front of Albus Dumbledore, predicting that "the one with the power to vanquish the Dark Lord approaches" and would be born at the end of July to parents who had "thrice defied" him. The first part of the prophecy was overheard by Severus Snape, a Death Eater who had once been Lily's friend, and still carried a torch for her.[5][6] He dutifully reported what he had heard to Lord Voldemort, but when Voldemort concluded that the son Lily was expecting was the subject of the prophecy, he was horrified.[5][6] Snape warned Albus Dumbledore and vowed to do "anything" to keep Lily and her family safe.[6]

The expectant Lily and her husband, James, went into hiding.[7] On 31 July, 1980, their son, Harry James Potter, was born.

Nymphadora Tonks

"Tonks is going to have a baby."
—Lupin announces that Tonks is pregnant[src]
Nymphadora Tonks profile

On 4 August, 1997, Remus Lupin found Harry Potter, Ron Weasley, and Hermione Granger hiding out at Grimmauld Place and offered to join them on the mission that Albus Dumbledore had given to Harry. Asked about what his new wife, Nymphadora Tonks, felt about the prospect of her husband going away, Lupin replied that she would be safe staying at the home of her parents. He then revealed that Tonks was pregnant, receiving a hearty round of congratulations from the three friends, and reiterated his offer to join them on their quest. Harry got angry and accused Lupin of failing to "stick with his own kid." Lupin confessed that he felt he had made a "grave mistake" in marrying Tonks, fearing that, in doing so, he had turned her into an outcast. He worried that his child would either inherit his lycanthropy or be ashamed of having a werewolf father. A heated argument between Harry and Lupin ensued, and Lupin stormed out.[8]

In March 1998, Ron told Harry and Hermione that he had heard from his brother Bill (presumably during his stay at Shell Cottage in autumn 1997) that Lupin was living with Tonks again, and that Tonks had gotten "pretty big."[9]

In April 1998, Lupin came to Shell Cottage — where Harry, Ron, and Hermione were staying — to announce the birth of a baby boy, whom he and Tonks had named Ted in honour of Tonks' recently-deceased father.[10]

In the Muggle world

In vitro fertilisation is a Muggle assisted reproductive technology used to help patients struggling with infertility achieve pregnancy.[11] The Guardian reported in 1996 that doctors who practised it had recommended against relying on frozen eggs.[12]

In the wizarding world

Healers recommended that pregnant witches refrain from travelling by Portkey.[13] Electric Shock Shake had a warning on the box advising that the product should not be used by pregnant witches.[14]


Notes and references

  1. 1.0 1.1 1.2 Harry Potter and the Half-Blood Prince, Chapter 10 (The House of Gaunt)
  2. 2.0 2.1 2.2 Harry Potter and the Half-Blood Prince, Chapter 13 (The Secret Riddle)
  3. 3.0 3.1 3.2 3.3 3.4 3.5 Harry Potter Limited Edition - A Guide to the Graphic Arts Department: Posters, Prints, and Publications from the Harry Potter Films (see this image)
  4. The timeframe of the prophecy can be determined as late 1979 from J. K. Rowling's statement during her 2007 Carnegie Hall appearance that the Potters went into hiding when Lily was pregnant, and the scene in Deathly Hallows, Chapter 33 where Snape goes to ask Dumbledore to protect Lily, which must have taken place in autumn given the description of the setting ("...the sound of the wind in the branches" and "Though leaves and branches still flew through the night air around them...").
  5. 5.0 5.1 Harry Potter and the Half-Blood Prince, Chapter 25 (The Seer Overheard)
  6. 6.0 6.1 6.2 Harry Potter and the Deathly Hallows, Chapter 33 (The Prince's Tale)
  7. 19 October 2007 J.K. Rowling appearance at Carnegie Hall
  8. Harry Potter and the Deathly Hallows, Chapter 11 (The Bribe)
  9. Harry Potter and the Deathly Hallows, Chapter 22 (The Deathly Hallows)
  10. Harry Potter and the Deathly Hallows, Chapter 25 (Shell Cottage)
  11. In vitro fertilisation on Wikipedia
  12. Harry Potter Limited Edition - A Guide to the Graphic Arts Department: Posters, Prints, and Publications from the Harry Potter Films (see this image)
  13. Writing by J.K. Rowling: "Portkeys" at Pottermore
  14. Harry Potter Film Wizardry, p. 136 booklet (see this image)