Little dizziness in my 4 week pregnancy

Coming in my 4 week of pregnancy, I became feel unfit. pain in my stomach, dizziness, tired,... I asked to my obstetrician, he examine me and said that at week 4 of pregnancy a woman perhaps already  started feel the symptoms of pregnancy. He said it was a natural, because there was a change in my body causing of my pregnancy. There was a tiny creature which resulted in various changes that affect my vitality. Include felt cramp in my stomach and the changed in my breast.

In this 4 week of pregnancy, a group of newly implanted cells grow rapidly, developing and clustering. Cell group is divided into two parts. One become placenta, other become a fetus. Cells plated also formed which developed into a specific part of the baby's part body later. There are three layer in it: ectodermic layer, endodermic layer and mesodermic layer. Amniotic sac and amniotic channel begins to form and also the yolk sac is visible. The yolk sac will further develope intothe baby's digestive tract. There many change in fetus. At the end of this week we may get positive result with test pack.

My obstetrician told me that in this week I must avoid all kinds of drugs include the herbal and natural, too. Unless advised by my obstetrician. He said that many drugs and suplements or food that were safe to eat when I was not pregnant, it could be bad for my baby in my pregnancy. My obstetrician prescibe me folic acid. He said I needed it for my pregnancy because folic acid helps in preventing the occurrence of defects in the developing baby that may occur in the first 12 weeks of pregnancy.