Abstract from "
http://pregnancy.about.com" for mummies reading
<font color="0000ff">4th Week</font>
Mother:
Your body is figuring out what is going on! 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.
Baby:
The chorionic villi are fully formed by the end of this week. In one study, 100% of the transvaginal ultrasounds showed a gestational sac. The yolk sac that helps feed your baby until the placenta is fully functional is appearing as well.
** can see the SAC
<font color="0000ff">5th Week</font>
If you are in your fifth week, you might not be able to stop yawning long enough to read this! Sleeping in a jog bra can help the breast soreness. Many of your symptoms are the same as last week. Some women may also get headaches from the rise in hormones.
There are also a lot of women who will have none of these symptoms. They will sail through early pregnancy without vomiting or being light headed. For a lot of women this can be normal as well. Do not panic if you do not have pregnancy symptoms, although you should contact your care provider if you suddenly lose your pregnancy symptoms.
Baby:
The heart will begin to beat this week! It's amazing how much is happening so quickly. A transvaginal ultrasound will show about 90% of the yolk sacs. It is now possible to differentiate between the head and the tail of the baby now. By the end of the week that folic acid will be paying off as the neural folds begin to fuse. Average length is 1.5 - 2.5 mm.
** able to see the heartbeat ??