I kind of have the same problem. I missed 2 days in a row and made them up. I started spotting about 10 days ago. It's very light. I was suppsosed to get my regular period 2 days ago but it looks like it's still just breakthrough bleeding. I'm on my second month. I was wondering how long does breakthrough bleeding usually last? And how do I know if I do have my period but it's just light this month? I'm so confused. Any feedback will help.