By week 6, the neural tube along your baby's back has closed over. In addition, there has been major growth in the brain as it grows in size to fill the now-formed, enlarging head. Optic vesicles, which later form the eyes, begin to develop this week on the side of the head, as do the passageways that will comprise the inner ear. Even though it can't yet be heard, your baby's heart will begin to beat around this time. And the beginnings of the digestive and respiratory systems are forming, too. Small buds that will grow into your baby's arms and legs also appear this week. All of your babys developments are taking place on an extremely small scale, though - your baby only measures 0.08 to 0.16 inches (2 to 4 millimeters) from crown to rump!

Week 7 your fetus is now at a length of 0.2 to 0.52 inches (5 to 13 millimeters) from crown to rump and a weight of 0.03 ounces (0.8 grams), your baby is constantly adapting to life inside the uterus. This week the umbilical cord, which provides nourishment and disposes of the baby's wastes, develops from the implantation site of the blastocyst. In addition, the baby's digestive tract and lungs continue to form. Are you waiting impatiently to see your baby's face on his or her birth day? You have a long way to go until then, but in the meantime, your baby's face is taking shape. The mouth perforation, miniature nostrils, ear indentations, and the pigmentation in the irises of the eyes are some of the changes taking place this week. The arm bud that developed just last week is already divided into shoulder segments and hand segments, which look like tiny paddles.

Pregnancy causes many changes in your body and particularly in your cervix. As part of this weeks physical changes you'll develop a mucous plug, which forms in the opening of the cervical canal and seals off the uterus for protection. Eventually you'll lose this plug as your cervix dilates in preparation for labor. You may experience slight cramping and spotting of blood during this week as the embryo implants firmly into the wall of the uterus. Some women even mistake this bleeding for their missed periods. Consult with your health care provider if you are concerned about the amount of blood or if the cramping is particularly severe.Fun Huh...the journey is only beginning and your body is growing daily, continue the journey into the next week to see what miracles are taking place in your body...