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.
A normal pregnancy lasts about 40 weeks from the first day of your last menstrual period (LMP). Pregnancy is assumed to start 2 weeks after the first day of the LMP. Therefore, an extra 2 weeks is counted at the beginning of your pregnancy when you are not actually pregnant. Pregnancy âofficiallyâ lasts 10 months (40 weeks)ânot 9 monthsâbecause of these extra weeks.