Is my cycle “normal”

I know everyone is different but I’m just wondering if what I’m experiencing is normal. I’m 18 and used to be on birth control from 16-17 1/2. My periods were super regular on BC pills and my periods went from 7 to 4 days long. Since I’ve come off birth control my period has become more and more irregular and long. My last couple cycles have been: 34,39,32 days. My current cycle is 43 days. Is this normal?? Why have my cycles gone from 28 on BC to 34-40 off BC?