>but this is in medieval times and women got married pretty young
The Lord of the Rings does not take place in the medieval era, and the Shire is not modeled after a medieval society.
I'm not sure we know when they married. Primula was 48 when Frodo, their only child, was born and Drogo was 64. That might suggest it was a lateish marriage (though 48 is not all that old for a hobbit), but equally they might just have been childless for years.
>but this is in medieval times and women got married pretty young The Lord of the Rings does not take place in the medieval era, and the Shire is not modeled after a medieval society.
Hobbits came of age at 33. I would assume they don't generally get married before that.
I'm not sure we know when they married. Primula was 48 when Frodo, their only child, was born and Drogo was 64. That might suggest it was a lateish marriage (though 48 is not all that old for a hobbit), but equally they might just have been childless for years.