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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Customer feedback
"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 let you know that your gender prediction was correct we had a 4-D ultrasound done a few weeks ago and it is a boy. thanks.

I just wanted to let you know you were right. You said it would be a girl and according to the ultra sound we're having a girl. We are very excited!!!

I just wanted to drop a little note. I took your gender predictor test at the beginning of my pregnancy just for fun. It said that I was having a boy. After having four girls already I didn't really believe your gender predictor test. I just had an ultrasound done at 24 weeks and it actually said that I was having a boy. To my surprise looks like your gender predictor test was accurate.

We just wanted to let you know we had our 20 wk sonogram yesterday and were told we're having a BOY!!! -- Just as you predicted!! We already have 2 girls so naturally (even after taking your baby gender prediction test back in June) we were still so convinced it would be another girl. Several versions of the Chinese calendar also said girl. Of course, our first concern has been a healthy child but this news has put us over the moon! I will most definitely pass along your site to other expecting friends. Thank you so much ... we couldn't be more thrilled!!!

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