
Cuz if she thinks she is pregnant and doesn't "pull through" with the pregnancy she will be assumed to have had a miscarriage and people will say that she is infertile and unable to have children. "Shame" on the family, they think winter will hate her, she will feel depressed and angry at herself for failing to give birth to his children.

They explain that ML can only have children with people with mixed blood of is mother tribe, but FL is royalty, meaning iher blood is complete "pure" making them unable to conceive children (she doesn't know).
If she does appear pregnant, it means she's cheating, this is why his parent's came up with this plan so ML can hate FL, their money make stay still.

Cuz then they can make it seem like she is a cheating whore.
He can't have children with her (or at least he and his family think so) so if she is pregnant, it's logical to assume that she had sex with another man.
This will make her seem like a cheating whore. The family doesn't like her so they will use this method to make the husband (who holds most power and wealth) dislike her. Most people are very upset by the idea of their partner cheating on them. They hope that this will make him not trust her.
In their minds, our lovely FL is purposely manipulating him to give them no power/ not to support him financially. That's not true. And they have been manipulating him for years, they see him as a cash cow that will give them money if they pretend to be nice to him.
She doesn't really have to be pregnant, she simply has to think that she is. If she tells him that she is, he will think that she chated. A lot of pregnancies end with miscarriages so the parents could use that as an excuse later on when no baby comes.

She's pure blood. The reason they have children is because ML mother's tribe has some magic in them, and this same magic flows through his blood. Because both ML and FL love each other so much, he's able to impregnate her even tho she doesn't have the tribe blood.
Of course, he has no idea about it.
Im confused can someone explain why the parents want violent to think she’s pregnant?