Spotting in week 2 of combo pills?

Cl

I’ve been on sprintec for about a year now, and every now and then I’ll start spotting in the second week and it continues for the rest of the pack. I take it on time every day (within 1-15 minutes of my alarm) and I haven’t missed any. I was wondering if there was something I could try to stop the spotting because it’s gotten to be very annoying. I don’t know if it’s because of stress or something to do with my IBS-C, but any tips help!