Week 5

Your `fetus`, about 5 weeks old

You are now in your second month of pregnancy and your developing baby is 3 weeks! You might just be finding out that you are pregnant and may have many concerns and questions. Some women still do not realize that they are pregnant yet. You might have already had a positive pregnancy test. Many tests can show a positive test result 10 days after conception, but it is recommended that you wait until you have actually missed your period. The baby has not grown very much from last week and is now approximately 1.25 mm long. You will not `show` yet for some time.

At this point in your pregnancy, you may begin to experience some symptoms. One early symptom of pregnancy is nausea. Some women will actually vomit and others will not. The nausea and/or vomiting that occur during pregnancy are called morning sickness. Most of the time morning sickness is worse in the morning, but not always. Morning sickness does usually improve or disappear by the end of the first trimester. Another early sign of pregnancy is the increased need to urinate. Frequent urination can continue throughout the remainder of the pregnancy because of the growing uterus and increased amount of fluids you are drinking. Many women also notice breast changes early in pregnancy. It is common to feel a tingling or sore sensation in the breasts or nipples. You might notice that the area around the nipple, the areola, becomes darker during pregnancy. It is also not uncommon to feel tired or fatigued at this point. You might feel like you need to nap at lunchtime and you may need to go to bed earlier to accommodate your body’s needs.

As early as this week, the plate that will become the heart has developed. Your baby’s brain, spinal cord, muscles, and bone formation are also beginning to form. The baby’s skeleton is forming at this time as well. The embryo has a distinct organization that has a top, bottom, left, right, front and back. It is important that you continue or begin to take your prenatal vitamins to prevent birth defects.

On your initial doctors visit you may be checked on Hematocrit, hemoglobin, white blood cell count, blood group type, Rh factor, antibodies to blood group antigens, VDRL, rubella anti-Body titer, hepatitis B, toxoplasmosis, urine culture, and HIV.

Sometimes as early as the second month of pregnancy, the insides of your hands and the bottoms of your feet may itch and take on a reddish hue. This annoying condition is called palmar erythema. The increased color is nothing more than a curiosity of pregnancy.

See also:

Skin changes

Home pregnancy tests


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  1. mrsdownie5 20 May 2016

    week 5 today :) any fellow mummies to be due in jan? Just got my letters from hospital my booking appointment is on 15th june an my first main scan 13th july :) can't wait though got another wee early scan to get on 6th June :) got such busy month or 2 coming up so will hopefully help the weeks fly by xx

    • katy6 27 May 2016

      Hello, yes I am also 5 weeks. Due 26th Jan, and it is also baby number 6 for us! We are SO excited, although have not yet told anyone. It is fun to have the secret for the time being. The kids will be absolutely delighted to find out though! How are you feeling? I have already started feeling nauseous. Urgh! Usually it lasts from about week 5-16 but I am hoping and praying it won't be as bad this time!

      • mrsdownie5 24 June 2016

        hi how have u been keeping? sorry ave been non stop not had 2 mins to go on this. had a scan the other day and am due anytime between 14th-16th jan now the last 2 scans have put me 2 days ahead though ill get my offical date on 13th july at my main first scan. thats nice ur on baby no6 the now as well :) what have u got and what are theyre ages? ive actually not felt pregnant this time which is strange usually have lot of symptoms by now! how have u been keeping?x

  2. koehnbaby2018 11 June 2017

    Hello ladies! Me and the hubby believe we are about 5 weeks along although we will know for sure when we have our first appt on June 26!

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