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.
1 The average duration of a regular pregnancy is 40 weeks. 2  In a twin pregnancy. the average is 37 weeks. for triplets 34 and quadruplets 32 weeks. 3  The average birth weight for singletons is 7 lbs 7 oz. 4  Average birth weight of twins is 5 lbs 5 oz. for triplets 4lbs and quads 3lbs.