This can occur naturally, it is exceptionally uncommon, estimated to happen in less than 1% of twin pregnancies.
"Bad Newz," starring Vicky Kaushal, Ammy Virk, and Triptii Dimri, is one of the most eagerly awaited films of the year. Directed by Anand Tiwari, the movie is based on true events and has been generating buzz for its unique storyline. According to media reports, "Bad Newz" centers on a rare medical condition where a woman becomes pregnant with twins from different men, known as heteropaternal superfecundation. Let's delve into this intriguing phenomenon and understand its causes.
What is Heteropaternal Superfecundation?
Heteropaternal superfecundation is an extraordinarily rare event where twins are conceived from different fathers. This can happen when a woman releases multiple eggs during ovulation and has sexual intercourse with more than one partner within a short period, usually within a few days to a week. Although this can occur naturally, it is exceptionally uncommon, estimated to happen in less than 1% of twin pregnancies.
How Does Heteropaternal Superfecundation Occur?
- During a woman's menstrual cycle, typically around the middle, one or more eggs are released from the ovaries in a process called ovulation. Occasionally, multiple eggs are released in a single cycle, particularly in women with irregular menstrual cycles or those using assisted reproductive technologies like in vitro fertilization (IVF).
- If a woman has sexual intercourse with multiple partners during her fertile window, which spans a few days before and after ovulation, each released egg has the potential to be fertilized by sperm from different men.
- Sperm from different men fertilize separate eggs, resulting in embryos with distinct genetic makeups from their respective fathers. These embryos then implant in the uterine lining, initiating pregnancy.
- Confirmation: Genetic testing can confirm heteropaternal superfecundation by revealing that the twins have different biological fathers.
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 "What is Heteroparental superfecundation, rare condition that inspired Vicky Kaushal's Bad Newz?")
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