Medical experts agree that fetal pain begins at 12 weeks gestation and may even be felt as early as eight weeks.
A fetal heartbeat starts between 90 and 110 bpm during the first weeks of pregnancy. It will increase and peak at around weeks 9 to 10 between 140 and 170 bpm.
Fetal brain waves, indicating electrical activity, can be detected as early as around 6 weeks and 3 days after conception (45 days), though the brain's connections needed to create these waves likely form even earlier
