Can I be pregnant

I had protected sex on a day where it was a 3% chance of me getting pregnant but we all know protection. Can possibly fail according to glow my ovulation day was 8 days away I've been experiencing

Back pains

Tender breast

Headaches

Acne

cramps

a weird discharge watery sticky

My period is due Monday according to glow but I have another app that says it's due tomorrow and I ovulated on the 13th I took a pregnancy test on the 22,24,25 all came back negative but I'm just scared these cramps are kinda worse then all the rest of my period cramps that I have had for a while I don't want another kid right now am I'm totally freaking out and scared of the possibility someone help me I am I really paranoid person and this has done nothing but scare me and maybe I'm siking myself out