Polysomnography is used to diagnose, or rule out, many types of sleep disorders including narcolepsy, idiopathic hypersomnia, periodic limb movement disorder (PLMD), REM behavior disorder, parasomnias, and sleep apnea.
Calculating Due Date: Estimated Due Date. Based on the last menstrual period, the estimated due date is 40 weeks from the first day of the period. This is just an estimate since only about 5% of babies are born on their estimated due date.
With IVF, itâs possible to be more precise. An IVF calculator can calculate your due date based on whichever date youâre more certain on: the first day of the last menstrual period, the day of ovulation, egg retrieval, or insemination, the date of the 3-day embryo transfer, or the date of the 5-day embryo transfer.