Apology accepted, flag of truce raised. If I come off as high-intensity it's because I'm very passionate about the subject and protecting the unborn, but I also recognize that it's nigh-impossible to change the mind of someone on the internet.
With that, I respectfully ask that you at least hear out my response to your points. No one can ever claim pregnancy is no big deal, especially one at a young age. Simply banning abortion would not be a comprehensive solution to the problems facing our society. As you correctly point out, a young girl becoming pregnant (certainly in religious, but in any school really) could result in her expulsion, which would both ruin her socially and derail her life in the future. I think it would be a fine idea to mandate that schools not kick out students in such a situation. Provisos should also be made to ensure the young woman could continue education online or privately. Anything to ensure she can keep some semblance of normalcy in her life. I have the utmost sympathy for any woman in that situation, it's something no one should be forced to endure.
My problem then with abortion as a solution is that it's not really a fix. OK, mistakes were made along the way. That's not justification to make one more and destroy the future that was brought into the world, by accident or on purpose. There are so many other options available to society today that don't require an abortion. As I said, measure have to be taken to ensure the mother could have the child in as normal an environment as possible without derailing her life. After birth, if she wishes, that child can be put up for adoption. There are thousands of couples looking to adopt a child, but as I said, the system needs an overhaul. Adopting is a financial and legal nightmare for many, and that leads both to unadopted (and subsequently abused) children and couples who can't adopt.
As an alternative measure, we are approaching the technological level that will allow us to transfer the developing child from the uterus to an 'artificial womb'. Should the technology be proven safe it would allow us to quickly transfer the fetus from the mother to the artificial womb, sparing her the potential ramifications (physical and emotional) of an unwanted pregnancy and preserving the life of the child. Here's a neat article that elucidates as to where we are now with it:
https://www.sciencedaily.com/releases/2019/03/190326105650.htm
[to be continued]