Your baby measures about 7.9 inches (20 cm) from head to foot and weighs about 6 ounces (170 gm) at the start of the week—and about 7.7 ounces (220 gm) at the end of the week.
The baby’s milk teeth are fully formed but can’t be seen, while the beginnings of the permanent teeth are starting to develop.
Your faster metabolism and the increase in the amount of blood in your body could be evident in your hair and nails as well as your skin. Dark patches may appear on your face if you have a pale complexion, or white patches if you have a dark complexion. Known as the mask of pregnancy, or chloasma, this condition is made worse by sunlight. Remember to protect your sensitive skin with sunblock or a sun hat when you’re in the sun. (Most women find these patches fade after pregnancy as hormone levels drop.)
You may start to see a dark line of skin from your pubic bone up to your navel. This is known as the pregnancy line, or linea nigra, and it often fades away after pregnancy.
“What if I faint during the birth?”. This is a fairly common concern among partners. In actuality, it happens very seldom. Some partners are also worried about vast quantities of blood during the birth, which there usually isn't (although there is a fair amount of amniotic fluid). Other common concerns that partners have are whether they have to cut the umbilical cord (no, your doctor will do it for you if you like), or where they should stand when the baby’s head starts to crown, and may they look between their partner´s legs (talk about it with your partner—and be honest!).
It is perfectly natural to have mixed feelings before the birth. Some partners may look forward to an exciting experience, while others feel afraid and would rather not be present—in which case, could a doula be an option?
Partners can also prepare for the birth by taking a course or reading up on the subject. Talk with friends who’ve been there—what was their experience, what was difficult, what could they have done differently? But don’t listen to the horror stories!