... I messed up and put in a new ring 2-3 days later- basically I ended up sort of 'stacking.' I got my period around when I expected it (a little later than normal for me but normal by the books). It was very short- 1-2 days in length with spotting for the rest if the week, which was odd.

I put the new ring on schedule and now I'm a day late and still no period. Took a HPT on the expected day (day 28) and got a negative.

Is it normal to take a while to re regulate after a mistake?