Yes, pregnancy is a normal thing...but sadly so is babies dieing...but luckly we live in a time where problems can be found early and fixed...The fatiality rate for twin to twin tranfushion used to be 90%...now it is 10%...due to a lazer surgery that can be done...of course it has to be done by 18 to 20 weeks....it is best found as early as possiable.