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Pregnancy Week 4 - Pregnancy Week by Week

By , About.com Guide

Pregnancy Week 4 - Pregnancy Week by Week

Mother:

Your body is figuring out what is up! A urine pregnancy test would probably be positive by now. They measures the amounts of the pregnancy hormone, hCG, in your urine. You are probably beginning to feel tired, urinate more frequently, experience mood swings, and possibly have tender or swollen breasts - these are common signs of pregnancy.

Be sure to avoid environmental hazards. The first trimester is the most critical time for formation of your baby. This also includes avoiding alcohol, smoke and second hand smoke, street drugs, including healthy eating habits and a pregnancy exercise program.

Due Date Forums

Baby:

The chorionic villi have begun forming by the end of this week. Towards the end of this week and into next week, a transvaginal ultrasound can show a gestational sac. The yolk sac that helps feed your baby until the placenta is fully functional is appearing as well.

More Pregnancy Pictures

Social Baby Updates:

Share your baby's progress with friends and family on Facebook and Twitter. Just copy and paste the following into you status update on Facebook or your Twitter stream:

The #pregnancy test is now positive! At 4 wks, baby is small but growing. Come see what's going on... http://ow.ly/53CxL @robinpregnancy

Dad/Partner:

Do you have a plan on how you'll find out about the pregnancy? Will the test be a joint effort? Some moms choose to have dad go and read the results. Be sure you've read the instructions and know how to properly read the test results. The words you say will be remembered forever.

Fun Ways to Announce Your Pregnancy

Readers Share:

This week we hear from other readers about how they came to the decision to bite the bullet and take a pregnancy test. What made them believe that they were pregnant? Did they have a pregnancy symptom or two? Read what others had to say on the topic and share your thoughts.

What made you take a pregnancy test?

Twin Tips:

hCG levels in moms carrying multiples are often more elevated. This can often be the first sign that you have more than one on the way! According to one study, at about 18 days of conception, (or 32 days since LMP) the average hCG for a singleton gestation is 450 and for a twin gestation is 1500. Though this is not a foolproof way to detect twins.

Suggested Reading:

A Child is Born by Lennart Nilsson
The ultimate "picture" book in childbirth. You have loved his photos, now they are available in a pregnancy book!
Click Here to Order

More Pregnancy Weeks:

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