Yesterday was my AF due date . Now today feeling high temperature when i woke up in evening Plzz do not ignore?

I am not to sure about the temp thing because I do not check mines. But a lot of ladies that do says if your temp stays up thats a good sign (atleast I think) But the most important fact is that you missed your period. I take that as a big sign. take a test. good luck I hope you conceived. keep us posted. GodBless