D.G.
You should be fine to continue traveling; I raced on a sailboat until I was 6 months along! 1) Just take the precautions any pregnant woman should take; eat healthy; and listen to your body. 2) Try to arrange an appt with an OB/Gyn as soon as you get back home (maybe someone back home can make an appt for you?). 3) Not sure what you mean by "safe to state you're pregnant"; but if you mean that you don't want to tell others until the biggest risk for miscarriage is past, the biggest risk is in the first trimester. 4) Tenderness is not abnormal, but if it seems excessive, or you start to have other symptoms, I would get into see a doctor where ever you are.