Due Date Calculator Gestation - The average duration of human pregnancy,
technically called the period of gestation.
Pregnancy Duration Calculator - In ancient times it was believed that the duration of pregnancy was of even more uncertain length in man than in the lower animals.
Due Date Calculator Period - Since pregnancy is not an absolutely fixed period, we possess no reliable means of predicting the exact day when it will end.
Due Date Calculator Prediction - Such results clearly indicate our inability to make accurate predictions even though pregnancy is normal in every way.
Due Date Calculator Confinement - Another method of estimating the date of confinement is basedon fetal movements during the pregnancy.
Due Date Calculator Prolonged - Since birth does not occur in many cases until
the predicted date has been passed, it will be helpful even at the cost of repetition to sum up what we know in explanation of such unfulfilled prediction.
