So I've been on the pill for a little over 2 years now and about 4 months ago I was switched to sprintec (my other perscription was recalled, they are very similar and so far there have been no problems.) I take my pills religiously at the same time everyday and havent missed one in at least 5 months and my periods have been regular since. I take my pill at 6am everyday and monday and tuesday of this week I overslept and took them at 7am. On wednesday I started what was barely spotting but this is a whole week before I start the placebo pills. Is this simply from taking it just 1 hour later than I usually do or could it be something else?

I know that missing pills completely can cause early or irregular periods but I still took the pill both days