Young President and His Contract Wife (2018)

Same theme- accidental pregnancy, shotgun wedding, contract and accidental abortion.
Similar characters- ceo ML and poor FL

An accidental pregnancy between an innocent girl and the only son of the rich family leads towards a contact marriage for the sake of tha baby.

After a young female gets drunk by chance..she sleeps with the rich family's only son and that leads to accidental pregnancy.
After the fact is known by the soon-to-be-father... The future parents are forced to get married and get into a contract marriage.