The start of your pregnancy begins before conception Week 1:
Understanding the differences between gestational and fetal age
The 1st week of pregnancy is called preconception, because it
actually begins with the start of your last menstrual period.
Why? It's hard to pinpoint exactly when your egg becomes
fertilized, but the date of your last cycle is a more accurate
starting point. Your doctor will calculate your due date by
counting 40 weeks from the start of your last menstrual period.
This is called the gestational age, and it's how most doctors
measure pregnancies. Because ovulation and conception take place
about two weeks after your period begins, your baby's fetal age
(which begins when your egg is fertilized) will be two weeks
less than his gestational age. So, when you're 8 weeks pregnant,
your baby's fetal age is 6 weeks. Your Week 1 nutrition and
health Early pregnancy nutrition tips During preconception, your
body is preparing for your baby. In fact, during every period,
your uterus has shed its l