Plz read 8dpo symptoms

Should i have pressure in my lower abdomen? along with dull af cramps,lower back pain..i had sharp pinching pains at 5dpo in my right side that went to the left. i have been having cramps since then. i have white cm cevix is still high and firm,my temp was 98.6 this a.m. i also woke up with a headache a weird taste in my mouth no appetite today waves of nausea and i have used the restroom 7 times today. i used preseed my whole fertile window i had a positive opk on May 2nd..tell me what do you guys think.