6wks pregnant and going away for a month overseas?!

Hi ladies! I'm six week pregnant and going from Sydney > NYC for 1 month for work. I've only had my initial doctor appt and blood taken - is it okay to now go on a four week break from seeing any doctor? I don't have an OB/GYN yet... Not sure if it's safe or I should push to come back a week early or so ... Please help!