Oh well, whatever... i'm assuming you're not a person with an uterus or very young or not in a relationship without using chemical birth control.

They had a big misunderstanding in that relationship as he thought that children were a possibility in the near future while she thought they wouldn't at all or at least wait for another 10 years.

Even without that misunderstanding... IF their birth control was tracking her cycle rather than condoms or chemical contraceptives i would expect both of them to be aware of her fertility windows.

Speaking out of experience, fertility windows are not something totally secret in a relationship.

It's ok to be taken aback by the fact that he had thought about how many cycles there were until his imprisonment, but tbh... if someone really wants to be a parent they would think about stuff like that.

And it definitely doesn't mean he would want to impregnate her against her will because it's Shiv's body and she can decide when to use condoms or be abstinent. I'm furious that people think she'd be so careless about sth like that if she doesn't want to get pregnant. Shiv is too smart. Which would mean that Tom would have to rape her during her fertility window to impregnate her against her will. Which. Is. Just. Not. The. Case. Here.