This is what it looks like only 4 days after fertilization.
At only 5-6 weeks of gestation the fetus starts to take form.
7 weeks of gestation:
At about 10 weeks you can see that the legs have formed.
12 week in the womb.
16 weeks of gestation:
This is a fetus sucking his/her thumb at about 18-20 weeks:
After 6 months:
Around 6-7 months gestation:
And finally at 8 months gestation this is what your baby looks like. WOW!