Multiple periods??

My last AF was 5/16. It was a regular cycle, length and everything as usual. My cycle lengths are usually between 30-32 days. Well for some reason today I started spotting lightly this morning. I thought it was just mid cycle bleeding because I should be close to ovulation. But now tonight it has turned heavy so I'm assuming it's my period..? Any insight or past experiences would be very helpful. I've never had anything like this happen before. Every blue moon I will miss a cycle but never two in less than one month