I had been working for one month almost and today my team leader called me in private and told me that they are going to hire another person with my position to help with other projects, as *they didn't anticipated the work load would be this much when hiring me. So I can focus myself onto the project.

He said that I didn't have worry because I am permanent and the new hire will be on contract.*

Does it mean it's a sign for me that they are not happy with me or just a regular conversation on hiring someone along me? I just moved to this country and I can't speak English like a native Briton so I was wondering if I am in hot waters?

They had been happy with my work and my understanding of what is needed and me able to deliver. But I am not vocal in meetings like other people because they been there for 2-10 years. So many things confuse me.

I did ask my boss if my job is in trouble and his reply was that I didn't need to worry. Yet I am worried. Am I on the verge of loosing the job or is this just a hiring process of letting you know if someone else is joining? If so, why not announce it in meetings with department? Why alone?