4 weeks pregnant ultrasound.

Most parents want to peek at the baby, who is still in the womb, but ultrasound can only be done when the mother's pregnancy at 4 weeks.
Of course, the picture is very small and somewhat opaque, but could be in the know and the presence of fetal position.  

By using probes or generating device as the receiver sound waves that its use in the paste into the body through the vagina (Transvaginal ultrasound).

By the time you 4 weeks gestation (14 days after conception) and the beginning of the week 5. This is when the woman's next period will be due (and now late) now called 'embryo', and has a length of about 1.5 mm (0 , 06 inches). On day 18 after conception, your baby's cord spine and brain (neural tube) begins to form. The top layer of cells (ectoderm) forming the back of the embryo.

It is a flat sheet of cells that folds in the middle and curls around to begin to form a tube (spinal cord baby). The upper end of the tube balloons and enlarge to form the beginning of the baby's brain, although quite primitive at this point. At the end of this week (day 21 after conception) are two sides 'sheet' meet and fuse to complete the neural tube.

At the age of 5-7 weeks visible content of which can be measured fetal length and the fetal heart rate. At the age of 12 weeks, we could see the fetus as a whole including the view of the head, feet and hands.

When she was 16 weeks, the placenta has begun to form perfectly, the fetus begins to appear more clearly and sometimes sex is already visible. But depending on the position of the fetus, if the cover sex, of the invisible.

Hopefully this information can help and add to our knowledge about the condition of pregnancy mothers, so that we can monitor the baby early.