ZincandCastor, I'm so, so sorry for what you're going through.
I'm so sorry that all of this has has happened to you.
I am a Catholic, and made my confirmation at 26. The nice thing about doing it as an adult was that I got to ask all the tricky questions.
The thing that is often forgotten about the church, both by people on the inside and the outside, is that we aren't expected to blindly follow the teachings of either our priest, or our Pope or our Church. We aren't. They are our teachers and our guides, but the number 1 rule is that we follow our own consciences.
I have heard the church rules on contraception, on abortion, and on homosexuality. I have heard their reasons behind them. I cannot reconcile my conscience to them. I'm glad that there are wise teachers within the church who I have been able to discuss these things with and though they have not agreed with me, they respected my right to disagree. We're not as uncommon as you might think.
There is a sense that Catholics believe that church should come above all things, and there are some Catholics, both lay people and priests who think that way too.
I don't. I think that God and Christ should be above all things. I do not believe that Christ would think it acceptable that the Church, or people working in His name have made you feel the way you do now. I do not believe that He would want people to turn on people the way that happens so often now, without thinking, without considering, without showing compassion; just judgement.
I'm so, so sorry that feel the way you do right now. I can't offer any help or advice. I still attend Church, even though I disagree with many of their edicts. It still feels like home to me; I like the connection I feel to God and Christ there. I'm not ashamed of myself, I'm not secretive about it - I tell all who ask my opinions, my thoughts and what my conscience tells me. It might be that I come across a priest at some point who does not feel able to serve communion to me, but that hasn't happened yet.
I know there might be other Catholics (and people of other faiths) reading this who may be of the opinion that I'm therefore not really a Catholic. I'm OK with that; my feeling is that it's between me, God, and my Priest and they can judge away.
Once again, my sympathies to you.
Oh, and on a scientific point, I think those Catholics are wrong anyway; I don't think you have killed a baby. Arguably if you hadn't accepted the treatment, you'd have been opting for suicide.