Hey all, firstly I apologize if this ends up lengthy, I'll try and keep it short.
So, some background information. I was raised Catholic, I wasn't in an extremely devout household. We went a lot when I was younger and I was baptized/confirmed Catholic. As I got older and my family got busier we ended up only going to mass on holidays and the random Sunday here and there. Now I go to a Catholic university and I attend mass weekly during the school year.
By BF was raised Lutheran in a pretty devout household. He went to a Lutheran school and church was a weekly thing for him, since starting college he doesn't go to church where we live now.
Another thing about BF is that he strongly dislikes Catholics and our faith. He was taught that we're a bad, selfish religion and what not. To me it's important that we go to church together and when we get married we have a church that we're a part of and don't have to scramble to find a priest or pastor. Also I want to have the steady Christian household for our future children that I didn't have.
Since he's not willing to cross over to Catholicism I decided that I will go to a few services with him at a local Lutheran church (if we find one, I guess there's different "versions" of Lutheran churches and we need to find the right one)
My question is if I decide to regularly attend Lutheran services and join the church do I have to start over again? Some people say that I will have to be rebaptized and/or reconfirmed. I guess that I assumed since I was baptized and confirmed as a Christian, although in the Catholic church, I should have a seamless transition? I feel stupid and undereducated but isn't a Christian a Christian? I know different churches have slightly different opinions and rituals, but for the most part believe in the same thing.
Thanks!

Training to be the next companion.