Chapter 53: Dating the Beginning of Pregnancy

how to accurately date the beginning of pregnancy, when is my baby actually due, due date calculator using ovulation, calculating due date from conception, estimated time of conception pregnancy dating, cervical mucus to determine conception date, why is my due date different from ultrasound, gestational age versus fetal age pregnancy, peak day ovulation pregnancy dating, naegele's rule accuracy problems, last menstrual period due date calculation, creighton model pregnancy dating accuracy, fertility charting to predict due date, estimated time of arrival versus estimated date of confinement, crown-rump length ultrasound dating first trimester, basal body temperature shift conception dating, preventing unnecessary amniocentesis with accurate dates, preterm labor diagnosis accurate gestational age, repeat cesarean section timing without amniocentesis, postterm pregnancy accurate dating, white flow versus red flow menstruation, intercourse timing and conception date range, bioassay for ovulation timing cervical mucus, obstetrical interference reduced by accurate dates, misclassification of gestational age effects, peak plus three conception timing, pre-peak intercourse conception range, ultrasound versus mucus symptom pregnancy dating, fetal lung maturity testing avoidance