Could it be! Please let it e

I am always regular. I get my period on the 28th day, always. I am now 4 days late and I am scared to test. Nips are sore for over a week now. I had spotting on Monday and nothing since than. Creamy discharge. Had a sore throat on Sunday and was gone by Tuesday with no meds or anything. I had mild cramps lower back and pelvic area wednesday but nothing since. (Just little pinches) My cervical position was lower on Sunday so I thought Af was coming and now itma so high I can't reach it. Reason I am scared to test is because ive been dissapointed before... but not that I am late for first time it's hiving me hope. I dont't want it to be false hope. People are telling me to wait 8 days because thats how long it tales hcg to rise up enough after implantation. What do you all think. Advice or past experience would be helpfull.