Letterkenny’s Leading Ultrasound & Early Pregnancy Scan Clinic

Mourne Scan Clinic – Private Ultrasound Scans

Common Questions About Ultrasound Scans in Letterkenny


Q. How big is a 2-week-old Fetus?

Your baby now resembles a tadpole and is as big as a peppercorn! The creation of the brain, spinal cord, heart, and blood vessels is well under way.
Baby’s Length: About 0.05 in.
Baby’s Weight: Less than 0.04 oz.
Your baby’s heart will start beating for the first time! (Neither you nor your doctor can hear it yet) Your little one has been busy growing! The embryo now has three layers: the outer ectoderm, which will form the nervous system, ears, eyes, inner ear and many connective tissues; the endoderm, which will grow into internal organs like the lungs, intestines and bladder; and the mesoderm, to make way for the heart and circulatory system. The mesoderm will also evolve into bones, muscles, kidneys and reproductive organs.


“Q. How does your stomach feel at 2 weeks pregnant?

If you believe you are 2 weeks pregnant, due to the way pregnancy is calculated, you will actually 4 weeks pregnant. Pregnancy is worked out from the first day of you last menstrual period (LMP)
It is important to remember that pregnancy will affect every single woman differently so symptoms for one may not occur in another. You have just got a positive pregnancy test after a missed period.
You might have no symptoms at all b  but then the pregnancy hormone, human chorionic gonadotrophin starts to kick in.

During your first trimester you might experience:

  • a metallic taste in your mouth
  • sore breasts
  • nausea
  • tiredness
  • heightened sense of smell
  • needing to wee more frequently
  • a milky white pregnancy discharge from your vagina
  • light spotting as the fertilised egg burrows into your uterus (see your doctor if you get bleeding during pregnancy)
  • cramping
  • thicker and shinier hair