After I Bought Sperm, the Alpha Claimed Me

A mix-up at the fertility clinic gives Ella the wrong sample. She had gone in wanting a baby of her own and is carrying the heir of Dominic Moon, the most powerful Alpha in the country. Dominic needs a Luna at his side for his campaign and Ella needs protection, so they make a deal and marry on those terms. There are attempts on their lives after that, and Dominic's ex-wife comes after them for revenge, and there are enemies on other sides as well. Neither of them keeps to the arrangement as it was written. Ella has a birthmark shaped like a crescent moon. There is a history behind it that neither she nor Dominic knows.