Dear Ready4Baby,
Vaginal bleeding by itself is a sign that can result from many different conditions so you need to do a little more investigation. A late menstrual period can be a sign of a problem with ovulation, a miscarriage, an ectopic pregnancy, a normal pregnancy, etc. A pregnancy test is a great place to help you begin to narrow down the possibilities. If you are going to be overseas for very long, it may be worth your while to establish a relationship with an ob/gyn so that you have someone local to reach out to if you have a problem. Good luck!