Feeling Territorial

My husband and I have been married for 3 years and decided to start TTC this summer. I have a family history of fertility problems so we decided to just keep it between us until we actually get pregnant.

Well, lately I've been super annoyed with no one to talk to. A girl got transferred into my department at work after recently getting married and has made it very well known they are trying for kids right now. I just want to be like no. You can't. It was our choice first. I work in a very small department so if we both do get pregnant it would cause a big strain on the work load and make my supervisor resent me for getting pregnant since no one knew we were trying.