Note: The mail service will be listening for your connection on TCP port 25. But this information will not be important until you see some Perl code later in the chapter. The message that you prepare can only use alphanumeric characters. If you need to send binary information (like files), use the MIME protocol.
With my first set of twins we were able to tell at 16 weeks and with my second set at 14 weeks. It all just depends on their position. I was having ultrasounds every two weeks so there were alot of oppurtunities to look. It would not matter if they are different sizes. Helpful (8) Nice.
Of course, while these symptoms of a twin pregnancy might help clue you in to your impending mom-of-multiples, doctors say there's no real way to be sure until an ultrasound confirms it. You can guess as much as you want, but until you have the ultrasound examination, it's all just speculation, says Dr. Grunebaum. Luckily, most mamas don't have to wait long to know for sure. Today, twins can usually be diagnosed as early as six to seven weeks of the pregnancy, he adds.