Thank you for all the replies! I am glad to hear that there may yet be a possibility here, as we have grown in our Christian walks together during our relationship, and in such a way as seems to confirm (both generally and by means of odd "coincidences") that we were led to each other.
I do feel embarrassed, though, to have been going to an Orthodox church with varying degrees of regularity for ~1 year & 9 months (2 this Spring), and yet to have used the term "catechumen" in a misleading way. I am more like a constant visitor--I have not yet begun classes or any formal process. I only mean that I do very strongly plan on it, and have discussed it with my priest a couple of times. As far as I have been able to come to know, I agree with Orthodoxy, though admittedly with some ignorance about a few matters (Mary, sacraments, etc.), so I usually tell people I am "orthodox in ideas".
Given that, while I don't want to act like I'm trying to fake God out (say, by marrying Protestant, and then converting formally), I may pursue some such route, which would be especially appealing to me, as, while I lack an understanding as to *why* the Eucharist is what it is in the spiritual life, I submit to the clear teaching of its importance by the Church in all times, and hope to learn, and thus would like to be able to partake, and to have my children do so, too. (Though I don't know what the situation would be if I married, converted, and then had kids. If I were able to take communion, but they were born into a Protestant-officiated marriage, could they commune?)
But then, this isn't the right thread to ask for an introductory explanation of sacramental theology, I suppose.
Thank you again for all the replies, and I welcome any other comments.
As I said, I am going to definitely consult my priest, and she, her pastor, prior to moving ahead with things. I know he would have a lot of wisdom to offer, and I see that many details would possibly be matters of the situation, though one should assume the rule, rather than the exception.