Who should i tell first, and when?

Wait until you know for sure! Don't tell ANYONE until you have a positive pregnancy test, if you tell your friends it will start rumors at school and if you tell your family it will just cause undue stress if you are actually not pregnant. Once you have a positive pregnancy test then you can worry about who to tell. I don't know how your mother will react but as a mother in the military myself I would be irate if I came home and no one had told me my daughter was pregnant. Military members tend to not like surprises - most are "planners" and like to start working on a solution to any problem as soon as possible! If you are pregnant I wish you the best of luck and I'm glad you decided to accept your responsibilities. If you are not pregnant then please be careful in the future! It would break my heart if my daughter got pregnant at 16 due to all the missed opportunities and struggles she would have to go through.