There are considerations of spacing children. I personally advise the young couples for whom I perform marriages to wait at least a year before having a baby, because they need the time to adjust to one another, and that means that they will have to use some form of birth control. I do not favor birth control devices as a way to permit casual sex. To me that is using the gift which God has given us irresponsibly. I would not favor the school nurse giving out birth control devices wholesale, because that implies support of casual sex.
Abortion is a much more difficult question.
The short answer is that the church strongly opposes abortion, and that includes the Lutheran Church. I can certainly accept that answer on the theoretical level, but as a parish pastor and former Navy chaplain I have had to work with a number of young women who contemplated or who have had abortions. There the question becomes much more difficult, as it does any time in which we must deal with real people. There one is forced into the sad situation of having to choose not between good and bad, but between two bads. At that point one must decide which is the lesser of two evils, with out attempting to turn one's choice into a good thing.