Week 5 of pregnancy is when you can first see evidence of pregnancy on an ultrasound. An ultrasound will not show a cute little baby but rather a small black dot inside the uterus. That is the gestational sac and has a bit of amniotic fluid in it. By the end of week 5 you are be able to see a white spot inside the black dot. The white spot in the gestational sac is the fetal pole and is the baby forming.
The baby is still very small, about the size of an orange seed by the end of week 5. The baby is developing. The baby’s heart structures are starting to develop. The neural tube is also starting to develop at week 5.
HCG is the “pregnancy hormone” and it is starting to rise in week 5. The HCG is responsible for many of the symptoms of pregnancy. Breast swelling and tenderness are often the first body changes that take place and may be experienced in week 5. Do not be alarmed if you notice breast discomfort and swelling this is normal. Not every woman experiences all the symptoms of pregnancy. If you do not feel breast changes do not worry, it does not mean anything is wrong.
Now that you know you are pregnant it is time to call your obstetrician and make an appointment for your first prenatal visit. The first prenatal visit will usually include a physical exam and a blood panel. The doctor is making sure you are healthy, checking the size of the uterus, as well as the other pelvic structures. The blood panel tests for various things that can affect the pregnancy.
It is common to have some spotting at this stage in pregnancy. Although this can be frightening for the pregnant woman, spotting is very common and usually does not represent a problem with the pregnancy.