Sex & Period Sexplanations

Okay. I've been on birthcontrol for the last 6 years. I've only been sexually active for 2-3 years. From the start my birthcontrolhasbeen amazing. No problems. Take it on time 99.9% of the time. RARELY forget to take it. I haven't had a real period in the last 3 years. Only very light spotting again VERY RARE. But the last 3 months I have had more spotting and 2 periods in mid birthcontrol pack. Obviously not normal. Also I have bled during intercorse (VERY UNUSUAL) two times with my SO. He's very accepting of the fact I randomly spot or bleed. The first "period" lasted 3 days and was Very red all 3 days. Extremely unusual for me. Should I make another gyno apt or see how it plays out?