Waiting Game is so Frustrating 😔

So my LMP was 9/28/2018. Before August I was very regular! Every 28 days! In September I was 7 days late. So my cycle was 35 days. I was suppose to start 10/26/2018, so I’m 13 days late! Without a positive. I have tested every two days. Do y’all think it is too early or is my cycle just extremely messed up?