Pregnancy dating can be confusing and for many reasons you may want to know exactly how far along you are. You may be considering abortion or checking out abortion alternatives.
Dating a pregnancy is also important at times when talking with the father of the baby. He may want to know that the dates make sense in his mind with the timing of conception. Medical professionals use two terms, gestational age and fertilization age, to talk about the age of the baby.
Most women ovulate in the middle of their monthly cycle, typically around the 14th day after the last period began. Conception (sperm meeting the egg) usually occurs around this date, two weeks after the last menstrual period (lmp).