Did anyone experience the same from 11dpo to 18dpo

I had a negative test on 11 dpo evening but then I had bad sore nipples red tits for 3-4 days they r fine now on 17th dpo. Today its 18th dpo and I have pain in calves and knees and slight pain in back,periods are late by 4 days. All these are pregnancy symptoms?

I am not testing, will test 2 days later coz negative test disappoints me.