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Week by Week Pregnancy Calendar

Fetal development pregnancy calendar week by week format taking you through the development of your baby during the course of the next nine months of your pregnancy.

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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 just wanted to say thank you for your accurate prediction of our baby's gender. I was very skeptical at first about how accurate this would be, but it was! You test stated that I was carrying a boy and I just had my 20 week ultrasound today and IT'S A BOY! We are so delighted as we already have a daughter we absolutely adore and baby (boy) our second child will complete our family.

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I went to fortunebaby.com (2) days before we were going in for a gender ultrasound. I was so excited to find out that it was going to be a girl from your website...what impressed me even more was that the baby name that we had chosen for our baby (if it was a girl) was on the list of recommended names. Then (2) days later, we found out that - without a doubt - our baby was going to be girl. I was so excited. I am still very excited. We have told all of our friends and family about your gender prediction website. We will also be back to use your gender selection test in a couple of years when we are ready to concieve a boy. Thanks so Much!

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