From left: Otūmoetai Primary School twins Havana and Stella Rasmussen, and Paige and Sophia Rudnicki. Photo / Zoe Blake From left: Otūmoetai Primary School twins Havana and Stella Rasmussen, and Paige and Sophia Rudnicki. Photo / Zoe Blake

Who is more likely to have a multiple pregnancy

are older — if you are in your 30s, you have a higher chance of a multiple birth because your body starts to release multiple eggs as you get olderare a twin yourself, or have twins in your whānau are having fertility treatment, such as in vitro fertilisation (IVF)are taller than average, or have a higher body weight.