Updated November 27, 2014.

Mother:

Welcome to the second trimester! This is usually the time when mothers feel their best. They are "over" the joys of early pregnancy and have more energy. They are also beginning to feel pregnant.

Some people have delayed spreading the good news until this point. If you are one of these people enjoy telling now, and think of some creative ways to do it. This is also a time when fathers and other family members start becoming more involved as the pregnancy becomes more real for them.

Encourage them to participate in your pregnancy to the extent that you feel comfortable.

• 13 Week Belly Photos
• Talk to Other Moms

Baby:

There are a lot of things going on this week! All twenty teeth have formed and are waiting (Teething is yet to come!). Your baby approximately weighs in at 1 ounce (28.3 grams). Consider that the placenta weighs about an ounce now as well.

Your baby's intestines are migrating from the umbilical cord into his or her abdomen. The villi are also forming in the intestines, these help in peristaltic movements and digestion. The pancreas of your little one is even secreting insulin! Meconium, the baby's first stool, is developing.

• Week 13 Ultrasound Pictures
• More about your baby in week 13.

Dad/Partner:

It's time to celebrate! You're out of the first trimester! Perhaps you've been waiting to tell family and friends. Most people feel more confident at this point and do begin to tell their circle of friends.

Readers Share:

Pregnancy is certainly an event that has a lot of myths and old wives tales surrounding it.

From trying to figure out if your baby if a girl or boy based on old wives tales, to pregnancy advice that just doesn't measure up (Like don't take a bath while pregnant...), there are a lot of things to figure out on your own. The problem is that you never really know what's fact and what's fiction! What is the best old wives tale or other piece of not so true advice you've heard about pregnancy, childbirth or breastfeeding?

Share Your Myths

Twin Tips:

Consider joining some online groups to help you through pregnancy. If you wind up on bedrest these groups can be wonderful to help you get through the days and nights to follow. Not to mention the great friendships you can make along the way.

Suggested Reading:

The Expectant Father by Brott & Ash
A book designed for dads-to-be, answering your questions and quelling your fears.
Click Here to Order

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More Pregnancy Weeks:

Pregnancy Calendar

Baby weights can vary widely. Please see your practitioner for your questions.

_{Photo © K. Harrell}