I knew I couldn't leave well enough alone...
We've already determined this to be a somewhat disputable matter (I believe that was stated earlier).
I'll be honest, I struggle to find the balance between the verses where we're commanded to be good stewards taking care of our families (I Tim 5:8), wise as serpents (Matthew 10:16), and plan for the future (Luke 14:28-30, Proverbs 13:16), which seem to imply that we're to use the mind God gave us to make wise decisions and those verses which effectively state we can do nothing on our own. I believe that one could make the argument from I Tim 5:8 that if we aren't able to provide food, clothing and shelter, we shouldn't be having kids. And yet we have verses stating that God will provide all of our needs... Again, I struggle with balancing these seemingly juxtaposed ideas. I'm worse than an unbeliever if I don't take care of my house but God is going to provide everything. Then we also have somewhere that a person needs to work in order to eat.
Regarding your argument on point 2. I don't believe the analogy is the same, you're willfully placing yourself in danger, I believe proverbs calls those people fools. From scripture I believe we can make the case that the wise are those people who plan (Luke 14:28-30,Proverbs 13:16), save ( Proverbs, 13:11, Proverbs 21:5), consult others (Prov 15:22) and allow God to change any said plans (Prov 16:9).
Tangent approaching...
Was the command to "go forth and multiply" a command to us all or specifically to Adam and Eve? I tend to believe it is generalized to us all, however, I would differ on the term command in light of the commands in Leviticus in which things are determined to be a sin or not a sin. If it is a command equivalent to the rest of the law then would anyone who is infertile for any reason be breaking the law? Are infertile couples less blessed and less loved by God? Are they living in sin? I'm fairly certain that we would agree that they are not. However, would we also judge them if they were able to be fertile only with the help of IVF?
Trying to get back on topic... so, let me ask this question. Are we then saying that people are okay under the Bible to use IVF and other sorts of technology to become pregnant but not able to use modern technologies in an attempt to better plan out child spacing? It would seem illogical to support the first but not the second.
My wife and I were unable to maintain a pregnancy for about 6 years and experienced several miscarriages before our oldest and before our 2nd youngest. All quite heart-wrenching. We were fortunate / blessed in that the problem was eventually corrected through weight loss and correcting a hormonal imbalance. Yet, I have personal friends who have been unable to conceive without medical intervention in the form of IVF. I struggle to accept that God is somehow less involved. Rather I tend to believe that God gave us the capacity to reason, to investigate and use what He gave us to do good. Oops slipped off on tangent yet again...
Well, I'm going to quit before I dig the hole any deeper... My intent is to provide more material and resources for those who come along and want to hear both sides of the discussion. :? Not certain I've provided a good representation but I gave it a go.
* EDIT:
http://christianpf.com/money-in-the-bible/ for more references about planning, saving, God's provision, etc. I only used it as a reference to pull Scripture references and don't know whether or not I agree with any statements made on the page because I was only scanning for Scripture