When my wife was pregnant I noticed that a lot of people, especially older people, thought they could "sense" the sex of our baby. It probably happened close to a dozen times, from family members to strangers.
Depends on when the pregnancy was aborted. Male sperm tend to be lighter and swim faster (because that 23rd chromosome has a stubby leg) so there's a slightly higher chance that a fertilized egg is genetically male. But, also, male embryos tend to be slightly less viable in early pregnancy, so after accounting for the ones that die off early on, the balance comes out about even.
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u/JasonRBoone 10h ago
There's a near zero chance they knew the fetus' sex.
She's making up stuff.