2WW and Symptoms

Sooo I’ve been tracking my ovulation and times sex almost perfect🤞🏽 I am indeed in my 2ww and I am having the worst back pains, and usually I only have back pain during that time of the month. 2 Days prior I had the worst pelvic pain and last night I woke up nauseous. Keep in mind I don’t or have never had cramps during/ before or after my cycle ... and Google is not helping lol .... I know it’s wayyyyy too soon to Test , as AF isn’t due till 10/17 what are some symptoms I should look for