Highly CONFUSED

So starting in May, af came on 5/2 as scheduled for 5days. No stress ,not on BC, pretty happy ( even went to my first concert). Then next period came 5/26 for 4 days ( 4 was the lowest I've ever been at). Now it's 6/12 and i started having lower back pain and cramps like af was coming. Then I went to the bathroom n (tmi) started bleeding like af started again. On 6/12 I did have serious pain and had a ruptured cyst and O at the same time(smh😔). This "period " is very weird if what this means ?