tmi bleeding rant

My period ended last week, things went back to normal for almost a week, and now I'm having light bleeding/spotting on and off. I never spot between periods but for the past couple days, I have been and some clotting also comes out. It sucks cause I never know when it's going to start. For example it happened in the morning, stopped the rest of the day, and then when I was just having sex, it started again (talk about a mood killer🙄). I don't know what's going on, but it's so frustrating. If it happened regularly, I'd understand, but this never happens. If it keeps on I think there's going to be a call to the doctor.