Week 3 of Pregnancy

Pregnancy Calendar: You are now 3 weeks pregnant

3 weeks old fetus (baby)

Week 3 of fetal development

The fertilised egg divides into two cells, then four, and continues to re-divide as it floats down the fallopian tube to the uterus. The bundle of cells is now called a morula and roughly seven days after fertilisation the morula implants in the lining of your uterus, which grows gradually.

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