You are now only 7 weeks pregnant but your baby is growing at an astonishing rate of about 1mm per day. In comparison to the rest of the body, the head is now still very big and will remain like this for a while yet. A few weeks ago your baby looked like a tadpole but now he already resembles a tiny person with the stumps of arms and legs and the buttons where his hands and feet will be. By the end of this week your baby will be approximately 7 to 9mm and the palms of his hands will be visible.
The baby's heart has now grown larger and the construction of the brain and spinal cord is almost complete although they have a long way to go until they are the correct size and in the right place. The muscles of the embryo are now so advanced he can move by himself. The genitals of the baby are not yet visible but they are growing. The baby also now has nostrils.
Although the baby might not be so big at this point, your uterus might be. This means you may to have to urinate more frequently as the bladder is under more pressure from the growing uterus. All the internal organs have to change position to accommodate the uterus and although you may feel these changes, it shouldn't cause any pain.
Because of the increased hormone production now taking place you may experience a variety of symptoms. One look at a teenager with acne and you will realize the problems this can cause. However, you can rest assured that your body is working hard to redress this balance.
There is an ultrasound available at seven weeks which is performed not via the abdomen but vaginally where your baby's heartbeat is visible as a flashing light. However, this early scan is normally only performed if you have previously had a miscarriage, have vaginal bleeding or are worried excessively.
You should not worry too much if you experience a little blood loss as there can be many causes for this. Old blood from when fertilization occurred and also blood vessels burst during intercourse can cause a spotting of blood or a pinkish discharge which shouldn't cause any pain.
If however, blood loss is heavy or prolonged or is it is accompanied by abdominal cramps or pain you should contact your doctor or care giver immediately.