Romance. Heroine is Hero's assistant. They have ONS just after Hero hit his head and so he can't remember it the next day. She becomes pregnant, takes break from being assistant but returns with baby.

[Rebecca]

Read as an ebook within the last 3 years. Hero and Heroine have known each other a long time, maybe childhood friends, but the are from different social classes. He is rich and takes her working for him for granted. She has always secretly loved him. When she takes a break she goes to some family in UK or US, Hero finds that the replacement assistant isn't the same and he missis Heroine. When heroine returns she hasn't told Hero about the baby and keeps him a secret. She lives in a big house with an ocean view. When Heroine returns a friend or family member comes with her to help look after the baby. When Hero finds out about the baby he thinks it is her friend/family members child.