Why am I spotting?

Zeee

Hi ladies. So I’m CD 14 today, my cycles are longer about 33-43 days, I confirmed ovulation (March CD 20 and April CD 22), so I shouldn’t be ovulating for another 7-10 days. I went to pee, and noticed a little blood on my underwear and very light when I wipe..... what could this be? This has never ever happened to me before. Also my period this time around was super light the first day and no cramps but the next few days regular flow also 5 days instead of 6.