Your comment is very good advice for all travellers: register before or as soon as you depart. I won't make that mistake again.
Send your e-mail address to lajefa in a Freepmail. That won't reveal your location. After lajefa replies, look at the full headers of the reply e-mail (state.gov or an IP address that'll whois to our government servers--in the first "received" line from his or her end). Then you'll know that it's safe to send.