1 Week Pregnant

Pregnancy is such an exciting time! Find out all you need to know about your first week of pregnancy.

What is considered your first week of pregnancy is actually your menstrual period. When you calculate your due date, it begins with the first day of your last period. So, this week counts as part of your 40 weeks, even though you have not yet conceived your baby.

First Week of Pregnancy

Weeks 1 and 2 of pregnancy are the week of and immediately following your last period. Your body has been paving the way for the baby by means of ovulation. Your uterus has been preparing to receive a fertilized egg, although you won’t know for sure until about a month later.

After you ovulate, one of the estimated 250 million sperm makes its way from your vagina, through your cervix, up through your uterus to the fallopian tube, where it penetrates the egg.

During the next 10 to 30 hours, the sperm will merge with the egg and the egg will become fertilized and is then known as a zygote. Once the zygote moves into the uterus it is called a morula. Within a couple of days, it will start to burrow into the rich lining of your uterus.

How You Are Changing

All of these amazing things are developing and changing inside your body during the first week of pregnancy. But what about you, how are you changing?

Your last menstrual cycle started about two weeks ago. You are probably ovulating now, or you soon will be. It may be another two weeks or more before your pregnancy test comes back positive.

So, what is considered as your first week of pregnancy, may seem fairly uneventful for you. You and your partner will no doubt enjoy the moment, even though it will take a few weeks to realize that “that moment” was just the right one to create a new little life.