About Fetal Development
Heart begins to beat at 18- 22 days, begins pumping blood at 21 days, and has its own blood type.
All body systems are present by 8 weeks of development.
Brainwaves can be detected between 40-45 days after conception, skeleton is complete, reflexes present.
At the end of three months, a baby can hiccup, suck his/her thumb, do a summersault, etc.