Week 4 pregnancy calendar Week 4 pregnancy calendar
Week by Week Pregnancy Calendar

See what fetal development week 4 has for your baby using our pregnancy calendar week by week format

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Week by Week Pregnancy Calendar


Our week by week pregnancy calendar will show you stages of embryo fetal development for your current week of pregnancy week by week. Our stages of pregnancy calculator will display which week and trimester you are currently in.


Pregnancy Week : 4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41 

View fetal development by pregnancy trimester stages


Week 4 fetal development


Pregnancy Calendar Week 4Pregnancy Calendar Week 4
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Boy or Girl ? - Find out Today
You're at your first trimester

The fertilized egg will implant in your uterus this week. This egg is called a blastocyst and it measures 0.1-0.2 mm in diameter. The sex and other characteristics of your baby have already been determined.



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"Thanks for the awesome result! I used your online baby gender predictor and the result was a Boy. Few weeks later, our scan confirmed that we are having a baby Boy. We are excited and very happy! I will recommend your site to everyone."
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Fortune Baby Gender Predictor Reviews


Thousands of happy moms around the world successfully used Fortunebaby gender prediction test. We are delighted to share their gender prediction reviews about their experience with Fortune Baby.

I would just like to let you know that I have two girls and a boy already, and as this was to be my last child, I bought the four year prediction test in order to conceive a boy. Today my ultrasound confirmed that it is indeed a little boy, and I just wanted to say thank you for helping me achieve this just as you did with my last baby which you predicted rightly a girl. You are amazing!

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I just need to tell you that the results you gave me on the gender of my baby were correct. You said a boy when I was only around 8 weeks, and sure enough, at 16 weeks, my Dr. confirmed that it indeed was a boy I was carrying. Just want to say thanks for the accuracy, and I will definitely recommend this site to others.

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