So one of my characters is 17, and her mother is a 40 year old GP. Is this likely? Would it be more likely if the daughter was adopted? (I assume it would)
No, it just means her mom is a freaking badass.
For those of you doing the math, Mom had the baby when she was 23, which puts her in her M1 (first year of med school).
Women go through med school with kids. In fact, she probably had the child in her first year of med school. Maybe she took time off – a year or two to get the baby settled in – but she got back on the horse.
She’d need some pretty great support systems to do this, and an iron will, but that’s the kind of woman who becomes a doctor typically).
And here’s the thing: even if this is improbable, this is a role model I want to see in fiction.
So go forth and Write the Thing™!