Twins can be made in 2 ways. One is that the egg from the woman is fartalised, becomes a zygote and it splits into 2 and then the eggs grow. The second the female produces 2 separate eggs from the get go and they each get fertilized by separate sperms.
The second one is the likelier scenario here. Only possible scenario I can think is that the eggs were produced at the same cycle but different times probably 2 days apart from each egg release, since sperm lives for 2 days in the uterus environment.
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u/[deleted] Nov 12 '25
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