My husband and I were engaged and ended up commited "fornication" on several occassions.
We thought it would be better if we confessed to get rid of the guilt. We confessed, got emotionally raped in those Judicial Committee meetings, got d/f'd, the elders told our parents to let us get married ASAP or break us up (we were both living at home at the time-only 17 and 18 years old). We got married in my parents living room with a justice of the peace. The next 8 years we kept from each other the humiliation that was given to us during our J/C meetings and never talked about it. We did get reinstated a year after we got married, but we were just young, scared kids afraid of losing our families for good, so of course we got reinstated. When we decided last year to leave the Org. we finally admitted to each other how we felt during that time of "confession". It was a horrible experience and did not leave us feeling renewed, loved, or disciplined at all.
Those are intimate details between you and your husband- regardless of whether or not you were married. Don't indulge the elders curiousity merely because theie WT Society's publications tell you to. If it really was a big deal in God's eyes, he'd step in and not have let you become a pioneer now would he? Seriously, it's nobody's business.