IUDs etc: This is an emotive issue that has caused disputes here in the past, so I will give a quick summary of IUDs from a Christian and scientific perspective for the benefit of readers, then let's leave the discussion at that, remembering this discussion is a "positive framework" for a no birth control position, not a debate about birth control per se. This post is purely to get readers thinking I would encourage you to look elsewhere for further answers if you are interested in this issue.
What everyone agrees on
IUDs work in multiple ways:
- By reducing the likelihood of conception
- By preventing implantation where implantation does occur
What is debated
The relative proportion of the time that it prevents conception or prevents implantation. Proponents of IUDs (e.g. manufacturers) stress the prevention of conception. Opponents of abortion and contraception (pro-life groups, the Catholic church etc) stress the preventation of implantation. The science is unclear on the actual answer here, and it will differ between devices also because there are different types.
How we should respond to that
We don't know when life begins. The most likely point scientifically is at conception (as that is the point where biologically and genetically a new organism is formed), however the Bible does not address this issue theologically. If life begins at conception, we don't know how often an IUD will cause death of that life (ie an early abortion), as opposed to preventing conception.
So, in the lack of perfect information, we should be very cautious. When using a gun, you are taught to "identify your target", ie don't fire unless you can positively identify that what you are shooting is not a human. The embryo may be a person, so we must not kill it. In the same way, even though we cannot be sure how often an IUD may cause death of an embryo, we know that it will do so at least occasionally. Even one death is too many, so we must avoid IUDs.
Similar issues apply to other non-barrier forms of contraception, such as pills and implants, all of which like IUDs work by both reducing the likelihood of conception (through inhibiting ovulation and sperm movement) and by inhibiting implantantation, to different degrees. These are more debated medically than the IUD, however a risk-averse decision will be the same.
Since there are other forms of contraception available (e.g. barrier methods and natural family planning) that do not have the risks to children associated with the IUD, there is no need for anyone to run this risk even if they do choose to control their family size.
For a more detailed and referenced discussion of IUDs, check out
http://www.ewtn.com/library/marriage/ccliud.txt. It is also interesting to look at manufacturer data sheets for contraceptives such as this, to see what modes of action are either explicitly admitted or hinted at between the lines even by the manufacturer - this way you know you're not just being influenced by the opinion of someone with strong religious views, but are actually reading the science (note however that the manufacturer is biased in the other direction, as they have a product to sell). For instance,
http://www.medsafe.govt.nz/profs/datasheet/m/Multiloadiud.pdf
Now, lets get back to discussing "A positive framework for a "No Birth Control" position". This thread is supposed to be discussing the good things about leaving family size in God's hands, not the bad things about birth control. If you want to discuss IUDs or other forms of contraception further, send me a private message.