Derailment (thought disorder) In psychiatry, derailment (also loosening of association, asyndesis, asyndetic thinking, knight's move thinking, or entgleisen) is a thought disorder characterized by discourse consisting of a sequence of unrelated or only remotely related ideas. The frame of reference often changes from one sentence to the next.
But remember -- you want to be sure you deliver a full term baby if possible. Pregnancy lasts for about 280 days or 40 weeks. A preterm or premature baby is delivered before 37 weeks of your pregnancy. 1  Extremely preterm infants are born 23 through 28 weeks.  Moderately preterm infants are born between 29 and 33 weeks.
If your baby is overdue. Pregnancy normally lasts about 40 weeks (that's around 280 days from the first day of your last period).Most women go into labour a week either side of this date, but some women go overdue.If your labour doesn't start by the time you are 40 weeks pregnant, and this is your first pregnancy, your midwife will offer you a membrane sweep at your 40 and 41 weeks appointments.If you have had a baby before, you will be offered this just at your 41 weeks appointment.f your labour doesn't start by the time you are 40 weeks pregnant, and this is your first pregnancy, your midwife will offer you a membrane sweep at your 40 and 41 weeks appointments.