How many menstrual cycles in a row are considered "regular?"

Jordan
My cycles were irregular for a long time, around 2 years. But this past year, after deciding we wanted to try for a baby, I went for a check and long story short, I was too overweight to ovulate. So I lost weight. My period came back in Dec and was on a 30-31 day cycle but in March, I had no period. I'm on cd 47. Was that three months long enough for me to be considered "regular" or should I wait longer? I've taken 2 tests and both bfn.