Help pleeeeease😁

I don't normally post on here but I'm so confused right now! I started my last period on 17/02 and it lasted 5 days, (my periods are very irregular, anything from 28-70 days and I've been told I have cysts on my ovaries) I had a 3 day bleed on 14/03 and assumed I was ovulating as I bled when I ovulated last period.. And this morning loads of blood came out again, it has now slowed down considerably, so it looks like it's stopped. I'm 99% sure I'm not pregnant, I'm always very very careful. I'm just not sure what's happening, like is this my period or am I spotting again? I also have 0 symptoms, my boobs are the smallest bit bigger but other than that nothing, no cramps, headaches anything, just a small bloat yesterday? Any help would be soooo appreciated