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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 was trying to figure out what my fiance and I were going to have when we got pregnant back in January. We were really hoping for a girl, and based on other online gender predictions, we really thought we were having a girl. I happened to stumble across Fortunebaby.com and decided to see what you guys said. It came back boy. I was disappointed, but not discouraged because everywhere else had predicted girl. Well, when we went to our 20 week appointment, we found out we are indeed pregnant with a boy. I'm so excited that you guys were right. And according to the 4 year gender prediction test, we won't conceive a girl until Fall of 2010. Which is perfect because we have already decided to wait until this baby (due in October) is at least 3 to have another baby! Thank you so much for such a wonderful service!

I took your baby gender prediction test when I was only 6 weeks pregnant & you told me I was having a boy! I went for an ultasound at 30 weeks and they told me it is 100% a boy. Thank you so much your baby gender prediction test is 100% accurate!

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.

Just thought I would let you know I was convinced I was having a boy as I have 2 already. Your gender predictor results said girl, and sure enough I went for my scan last week and I am having a girl. Thanks I do believe you now!!!

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