Pregnancy

Pregnancy is the condition of having one or more unborn offspring developing inside the uterus.

Lily Potter
Lily Potter became pregnant in the fall of 1979. Around the same time, 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. 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. Snape warned Albus Dumbledore and vowed to do "anything" to keep Lily and her family safe.

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

Nymphadora Tonks
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. An argument between Harry and Lupin ensued, and Lupin stormed out.

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."

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.