By getting an abortion.
A fetus is generally not visible on ultrasound until about 5-6 weeks of pregnancy. At 3 weeks, the embryo is very small and not typically detectable on ultrasound.
For the first 8 weeks the developing human is called an embryo after that it is called a fetus.
At 5 weeks of pregnancy , the fetus is still in the process of organeosis. It will take 3 months for to complete this.
One can tell how far along they are in pregnancy by having an ultrasound. An ultrasound measures the fetus and then compare that measurement to what an average fetus is. If it matches to a 3 week fetus it means that one is 3 weeks into pregnancy.
At 12 weeks of development, a fetus does not have the neurological development to feel pain.
the fetus will start kicking around 25 weeks
At around 3 months (approximately 12 weeks) of gestation, a fetus is typically about 2.5 to 3 inches long from crown to rump. This is the stage when significant growth occurs, and the fetus begins to develop recognizable features. By the end of the first trimester, the fetus is starting to resemble a human more closely.
2 weeks
normally a fetus is 5.6 cm on average
fetus
29 weeks
Fetus