She signed a contract that probably had clear rules of behavior. My wife works at a private school and has a contract that has things like no drinking, no smoking, etc. There is no mystery, it is just a matter of honoring your word in the contract you agreed to.
Wouldn’t it have been simpler for her to just get married.
BTW, if she doesn't want to keep the baby, there are a ton of place who will pay for all prenatal, birth and post natal care in return for the rights to adopt the child into a two parent home. My niece was fortunate to be so adopted and my sister and BIL paid all expenses.
Exactly - it's a contract thing, not a Christian thing.
As for challenges to contractual authority, then you get into the nasty grounds of limiting a free person's right to contract. So you have to bring in arguments concerning denial of that freedom, like (usually) fraud, or coercion, or limited comprehension, etc.
Of course, at the very bottom you have Muslims, who use freedom of religion to justify contracts that can be used to commit murder and slavery, but then that same religion denies the authority and process of the contractual legal system it is exploiting. So its continued existence is a political issue, not a legal one - it has no legal grounds to exist.