The heartbeat actually doesn't occur until the late second trimester. The perceived 'heartbeat' until then is a cell pulsation due to electrical stimulation (cells communicating with each other essentially). The heart roughly starts developing anywhere from 18-22 weeks and starts beating a once it's done.
My stance on abortion hinges more on the development of the brain. I believe it is okay until the fetus develops a thinking brain considering our humanity comes from our ability of complex thought and not that we have a heartbeat. The brain is once of the later organs developed because it is the most complex. With that being said, I support someone's choice until the third trimester. That's the line in the sand for me.
Abortion really is an issue that needs to be thrown out of politics. It should be up to a doctor if he wants to perform them and up to the patient if she wants to have one. No one else has any business butting in between the patient and doctor.
Also, my source is that I worked as an undergrad in a cell and molecular development lab for a semester and did shite like that all the time. Worked under a chick that studied a lot of prenatal stuff.
ETA: the notion that they think science cannot be applied to the human body is complete and utter bull shite. The human body is a part of science.
This post was edited on 11/15 at 1:18 am