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.
âIn the majority of twin pregnancies, labor will begin before 37 weeks,â according to Twins! Pregnancy, Birth and the First Year of Life. The average duration of a twin pregnancy is 258 days, compared to 282 for a singleton birth, the National Organization of Mothers of Twins Clubsâ (NOMOTC) website reports.