Weird things

First off everytime I brush my teeth they bleed bad.. the last two days I have brushed them they haven't. Second I have a sore on the inside of my cheek like a canker sore. Third I have just noticed a rash that hurts on my right hand. These are really wierd things that's been happening. I'm either 8/9 dpo.. af due the 17/18... could these be wierd signs maybe lol..