Temping! High temps question. Pleaeehelp.

So I’m probably over analyzing this - but I have had four high temps (4dpo) they keep rising - last month I dipped at 3dpo and stayed at a consistent number and then my tracking was erratic and my temps were up and down. So my question is- do your temps have to keep rising to give you a hint that you may be preggo? I know the implantation dip can happen but was wondering about before that?