pregnancy fetus week 8


More than half way through the first trimester and baby continues to grow rapidly. Last week, baby measured 1/3 of an inch and now he has grown to ¾ of an inch in length. The heart is beating and if an ultrasound is performed, a fluttering will be seen on screen. Joints, muscles and bones are now forming and tiny fingers and toes gain length every day. The fingers and toes are webbed at this point. Teeth are growing under the gums. These are the baby teeth that will break through first. Multiples are growing at the same rate as singlets.

8 week fetus 3D ultrasound
8 week fetus 3D ultrasound

Your Body

The uterus continues to grow as baby grows. By the time week 8 starts, the uterus is about the size of an orange. First pregnancies take longer to show, so first time moms can keep the pregnancy hidden for quite a while. If this is not the first pregnancy, a pooch or small mound may start forming by week 8.

Skin changes also start occurring around week 8. Morning sickness may be subsiding a bit, but the body changes are not over. Acne and pimples are common during pregnancy and are attributed to pregnancy hormones. Mom may have to wait until baby is born to get back that healthy looking skin she had before pregnancy, but some moms are lucky enough to see a significant change by the end of the first trimester.

The first prenatal appointment should occur at this time or earlier in the pregnancy. At each visit, you can expect to have your urine tested for glucose, heart rate and weight taken, and blood pressure measured. 


The first prenatal appointment will be very soon and dad needs to be there. Mom may say it is just a simple appointment to start prenatal care, but that is not the point. Dad needs to be involved from the beginning, asking questions and taking notes. Going into the waiting room and staying out front when mom is taken inside the exam room is not the best option. Parenting takes two, and dad should support from the beginning. No dad, we don’t know the sex yet.


— Getting attached to baby early on may be hard, so mom can choose to read books about pregnancy to get closer to baby. Some books even include pictures of baby in utero at given weeks. There is nothing better than looking at a fetus that is the same size as your baby.