But things with tiny odds happen to people regularly, given how many people there are on the planet.
When DT2 was born he was diagnosed with a condition that only affects 1 in 100,000 babies. I thought that was so rare. Then multiple other things were diagnosed, the chances of having the collection of diagnoses he has with no underlying cause is extremely tiny, but they can’t find a genetic cause. His geneticist wants to run a trial as they suspect a genetic condition that’s currently unknown, and he may be the only case, or one of a handful. Because of all this I have met many parents of children who have genetic disorders, where they are one of only a few people in the world who are known to have it, sometimes the only one. Statistically the odds of all these things are so low and yet they’ve happened to so many people I’ve met.
So even if the chance of this happening is one in ten million, that means it would still happen to about 6 people just in this country.
But I just looked it up and it’s nowhere near as rare as any of them - approximately 4% of pregnancies occur using the withdrawal method (and although some will be poor timing, it’s surely not all of them), and one study showed 37% of men had viable sperm in pre-ejaculate (although small sample size), and that each man either did have viable sperm in it or he didn’t.
www.ncbi.nlm.nih.gov/pmc/articles/PMC3564677/
www.healthline.com/health/healthy-sex/can-you-get-pregnant-from-precum#does-pre-cum-have-sperm
So it’s not even rare for sperm to be present.
(I’m also someone who experienced near death by sink - that’s got to be pretty bloody unlikely, yet I bet I’m not the only person in history it’s happened to!)