Could really use advice 😞

Bear with me. Really confused and frustrated here. My cycle has been 28 days since I started tracking it 7 months ago. Last month, I had cramping 5 days before my period was due. This has never happened before so needless to say, I got excited. My period didn't arrive and I was convinced. Then 2 days late, it came 😞 This month, I'm on day 32 and nothing. It normally comes the 29th day. Last month it came on the 31st day. I don't even know what to expect or what this means. Anyone else have regular periods that suddenly stopped being regular?!