Zar may refer to: 1  Zar, Armenia, a town in the Kotayk Province.  Zar, Azerbaijan, a village in the Kalbajar Rayon currently controlled by the Nagorno-Karabakh Republic.
If you're carrying more than one baby, chances are good you'll deliver early. Twins are usually born around 36 weeks -- four weeks early. Triplets arrive at about 33 weeks, and quads often make their debut at 31 weeks.
It is fairly common for twins to be conceived but for only one to grow and develop. This is known as vanishing twin syndrome. If you're pregnant as a result of a fertility treatment such as in vitro fertilisation (IVF), you'll probably have an ultrasound as early as four or five weeks into your pregnancy. Read more about what scans you'll have when you are expecting twins.