Re: Getting married in your back yard.
Have you cleared this with the priest, yet? Rare is the bishop nowadays that will allow a Catholic wedding outside the church building (for good reasons, permission is regularly given for marriages in a Protestant church [e.g., the bride’s dad is a minister] or a hall [e.g., fiance is Jewish]).
Regardless of where you get married, the marriage is never a private affair. The civil state is involved with all its marriage laws (ownership of property, legal rights, child custody, name change, etc…). And likewise a church marriage makes the marriage a public event in the life of the whole church, not just for you and your families. And so, the church sets the rules for a church marriage, no matter where it happens.
Re: The wait.
Church law requires preparation for an engaged couple. It doesn’t set a specific time, but the overwhelming majority of bishop’s have set six months as the minimum (the dioceses of NJ require a year!). The purpose of the wait is so that preparation can take place. I’m sure you think you’re ready, and you think you have no need for what the RCC might want you to know or consider, but one would hope that the Catholic party would want to at least check out what her own church would like her to know and prepare for.
The preparation is more than just learning how to be married. It’s not just a class.
First, the church needs to make sure that you two are free to be married in the church: that you’ve not been married before; that you’re not just doing this on a lark; that you understand this is for life; that you’re not brother and sister; etc… You’ll even be asked if you’re able to physically engage in intercourse, since that’s a requirement of consummation.
Second, the church wants to make sure that you’re really prepared. Sociologists point out that couples often have blind spots in the relationship, i.e., topics they both avoid for fear that their possible disagreement might be a deal breaker. The preparation the church puts you through is to go down a list and make sure you’ve discussed everything you need to discuss before you get married. It’s not too good a situation for a couple to marry and then find out one wants one child, the other wants ten.
Third, the church also wants the opportunity to sell you on the spiritual and yes, moral, aspects of married life. While the ban on artificial contraceptives is controversial, there are other issues which should be quite amenable. For example, the church also promotes other moral stances like equality in relationship (the RCC doesn’t go into that fundamentalist “man is the head of the woman” crap); mutual respect (which preclude physical and psychological abuse); praying together; raising the children with Christian faith; etc…
What to expect
You’ll have one to three meetings with the priest or deacon preparing you for marriage. He’ll ask basic questions about your relationship. Be honest and you’ll be fine. He’s seeing if you two have the barest minimum ability to express your desire for marriage. Why do you want to get married? Why this person? Describe your partner’s personality to me.
If you’re a mope and can’t think of one nice thing to say about your fiance; or there’s talk of abuse or alcoholism or severe arguments; then your priest might refer you to counseling. This isn’t to judge you, but to help you two work through whatever the problem might be.
If you’re living together, the priest may ignore it, or challenge you two to separate until marriage, or, take a middle ground and just discuss it with you. You don’t need to worry too much about it, being an agnostic, it’s your Catholic fiance that will have to explain herself. Note that the priest can not force you to separate or call off the wedding if you’re living together. The catholic party has a right to marriage and cohabitation is not a canonical impediment to marriage.
The marriage workshop might be a one-day session, or two-nights, or a weekend retreat. This is the easy one. When run well, these workshops operate on an adult model of education, i.e., they don’t teach you how to be married, but rather, set an environment where you two prepare each other. Talks from the couples who present are only supposed to be jumping off points for you two to talk about these topics with each other. You fill out work sheets and compare answers. Nobody grades, nobody looks over your shoulder, nobody judges.
I recommend that if given a choice between several workshops that you get a recommendation from someone who’s gone before. Some can be deadly dull, others can be absolutely invigorating.
Peace.
And congratulations on your engagement.