hi, my name is alicia, im 19 now, i get pregnant when i was 17. my (now) husband is in the navy. my daughter was born may 28th (2007) and my husband had to leave july 15th, and now theres a possibility he could be leaving again in october of this year. its hard, i wont lie to you, sometimes i wish we just had a normal life but thats not how it is.
you do need to get a test though. if you are not pregnant then you should get on birthcontrol (unless your wanting a baby of course) tricare offers plenty of birth control options (im going out on a limb and assuming you have tricare, im sorry if im wrong)
also if you are pregnant the army can not kick you out, ive heard of cases where they tri to get you to leave but they cant kick you out just for pregnancy. i know plenty of pregnant women who are in the navy
good luck